Themed collection #MyFirstChemSci 2023

113 items - Showing page 1 of 2
Open Access Perspective

Organocatalytic activation of hydrogen peroxide: towards green and sustainable oxidations

Green oxidation reactions performed by organocatalytic activation of hydrogen peroxide.

Graphical abstract: Organocatalytic activation of hydrogen peroxide: towards green and sustainable oxidations
Open Access Perspective

Recent developments for intermolecular enantioselective amination of non-acidic C(sp3)–H bonds

Recently, the field of intermolecular enantioselective amination of non-acidic C(sp3)–H bonds has witnessed rapid advances, which are discussed in this perspective

Graphical abstract: Recent developments for intermolecular enantioselective amination of non-acidic C(sp3)–H bonds
Open Access Review Article

Advancing cell surface modification in mammalian cells with synthetic molecules

This review offers a survey of recent advancements in the modification of mammalian cell surfaces through the use of synthetic molecules and concludes by addressing the present challenges and potential opportunities in this rapidly expanding field.

Graphical abstract: Advancing cell surface modification in mammalian cells with synthetic molecules
Open Access Edge Article

What is the nature of the uranium(III)–arene bond?

Complexes of the form [U(η6-arene)(BH4)3] where arene = C6H6; C6H5Me; C6H3-1,3,5-R3 (R = Et, iPr, tBu, Ph); C6Me6; and triphenylene (C6H4)3 were investigated towards an understanding of the nature of the uranium–arene interaction.

Graphical abstract: What is the nature of the uranium(iii)–arene bond?
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Keeping an “eye” on the experiment: computer vision for real-time monitoring and control

Chemists heavily rely on visual cues for routine tasks. Here, we introduce a computer vision system to automatically monitor and control diverse workup processes based on visual aspects, advancing toward autonomous operations.

Graphical abstract: Keeping an “eye” on the experiment: computer vision for real-time monitoring and control
From the themed collection: 2023 Chemical Science HOT Article Collection
Open Access Edge Article

PolyNC: a natural and chemical language model for the prediction of unified polymer properties

PolyNC directly infers properties based on human prompts and polymer structures, enabling an end-to-end learning that encourages the model to autonomously acquire fundamental polymer knowledge, in a multi-task, multi-type unified model manner.

Graphical abstract: PolyNC: a natural and chemical language model for the prediction of unified polymer properties
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Cucurbituril-based supramolecular host–guest complexes: single-crystal structures and dual-state fluorescence enhancement

Two supramolecular complexes were prepared using cucurbiturils [CBs] as mediators and a four-armed p-xylene derivative (M1) as a guest molecule.

Graphical abstract: Cucurbituril-based supramolecular host–guest complexes: single-crystal structures and dual-state fluorescence enhancement
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Aggregate assembly of ferrocene functionalized indium-oxo clusters

Presented here are a series of ferrocene-functionalized high-nuclear indium-oxo clusters (InOC), containing thirteen-nuclear and cubane-type heptanuclear InOCs. The self-assembly of them leads to the formation of dimers, tetramers, and one-dimensional extended structures.

Graphical abstract: Aggregate assembly of ferrocene functionalized indium-oxo clusters
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Unveiling the topology of partially disordered micro-crystalline nitro-perylenediimide with X-aggregate stacking: an integrated approach

An interdisciplinary approach to derive the structure of a disordered supramolecular system.

Graphical abstract: Unveiling the topology of partially disordered micro-crystalline nitro-perylenediimide with X-aggregate stacking: an integrated approach
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Towards designer polyolefins: highly tuneable olefin copolymerisation using a single permethylindenyl post-metallocene catalyst

Using a highly active permethylindenyl-phenoxy (PHENI*) titanium catalyst, high to ultra-high molecular weight ethylene–linear-α-olefin copolymers are prepared in high yields, with exceptional comonomer affinity, and predictable, tuneable composition.

Graphical abstract: Towards designer polyolefins: highly tuneable olefin copolymerisation using a single permethylindenyl post-metallocene catalyst
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Endogenous metal-ion dynamic nuclear polarization for NMR signal enhancement in metal organic frameworks

Dynamic nuclear polarization from endogenous metal ions is an efficient route to increase the sensitivity of solid-state NMR for probing host-guest interactions for rational design of metal organic frameworks (MOFs).

Graphical abstract: Endogenous metal-ion dynamic nuclear polarization for NMR signal enhancement in metal organic frameworks
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Photocatalytic (3 + 2) dipolar cycloadditions of aziridines driven by visible-light

Herein, we document the design and development of a novel (3 + 2) cycloaddition reaction aided by the activity of an organic photocatalyst and visible light.

Graphical abstract: Photocatalytic (3 + 2) dipolar cycloadditions of aziridines driven by visible-light
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

A single phosphorylation mechanism in early metabolism – the case of phosphoenolpyruvate

A nonenzymatic reaction converting pyruvate to phosphoenolpyruvate (PEP) is shown to proceed through carboxylate phosphorylation, suggesting that only a single phosphorylation mechanism was needed to initiate metabolic networks.

Graphical abstract: A single phosphorylation mechanism in early metabolism – the case of phosphoenolpyruvate
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

From non-conductive MOF to proton-conducting metal-HOFs: a new class of reversible transformations induced by solvent-free mechanochemistry

All coordination bridges in a non-conductive MOF are broken by force to make the material a proton conductor.

Graphical abstract: From non-conductive MOF to proton-conducting metal-HOFs: a new class of reversible transformations induced by solvent-free mechanochemistry
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Hydrogen spillover and substrate–support hydrogen bonding mediate hydrogenation of phenol catalyzed by palladium on reducible metal oxides

Surface contrast solution NMR and reaction kinetic assays reveal an active role for H2 spillover in the phenol hydrogenation reaction catalyzed by Pd on reducible metal oxides.

Graphical abstract: Hydrogen spillover and substrate–support hydrogen bonding mediate hydrogenation of phenol catalyzed by palladium on reducible metal oxides
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Understanding divergent substrate stereoselectivity in the isothiourea-catalysed conjugate addition of cyclic α-substituted β-ketoesters to α,β-unsaturated aryl esters

Divergent stereoselectivity is rationalised in isothiourea catalysed conjugate additions of β-keto esters.

Graphical abstract: Understanding divergent substrate stereoselectivity in the isothiourea-catalysed conjugate addition of cyclic α-substituted β-ketoesters to α,β-unsaturated aryl esters
Open Access Edge Article

Improving the potential of paraCEST through magnetic-coupling induced line sharpening

A paramagnetic chemical exchange saturation transfer (paraCEST) imaging agent based on a homodinuclear Ni(II) complex exhibits enhanced CEST efficiency due to magnetic-coupling induced line sharpening effect.

Graphical abstract: Improving the potential of paraCEST through magnetic-coupling induced line sharpening
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Synthesis of substituted benzylboronates by light promoted homologation of boronic acids with N-sulfonylhydrazones

The homologation of boronic acids with diazoalkanes obtained by photochemical decomposition of N-tosylhydrazones leads to substituted benzylboronates, previously unavailable under thermal conditions. Batch and continuous flow reactions are described.

Graphical abstract: Synthesis of substituted benzylboronates by light promoted homologation of boronic acids with N-sulfonylhydrazones
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Intramolecular donor-stabilized tetra-coordinated germanium(IV) di-cations and their Lewis acidic properties

Intramolecular phosphine-stabilized tetra-coordinated Ge(IV) di-cations are established. Dispersed charges lead to Si–H activation initially at the P-site, which ultimately migrates to the Ge-site due to geometric constraint empowered Lewis acidity.

Graphical abstract: Intramolecular donor-stabilized tetra-coordinated germanium(iv) di-cations and their Lewis acidic properties
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Engineering TADF, mechanochromism, and second harmonic up-conversion properties in regioisomeric substitution space

Fine-tuning of TADF, mechanochromic luminescence (MCL), and second harmonic generation (SHG) properties among three donor–acceptor based regio-isomers have been explored in this research article based on both theoretical and experimental outcomes.

Graphical abstract: Engineering TADF, mechanochromism, and second harmonic up-conversion properties in regioisomeric substitution space
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Regioselective ortho halogenation of N-aryl amides and ureas via oxidative halodeboronation: harnessing boron reactivity for efficient C–halogen bond installation

We report the discovery of an ortho regioselective oxidative halodeboronation of N-aryl amides and ureas with wide-ranging applications in pharmaceuticals, materials science, and synthetic organic chemistry.

Graphical abstract: Regioselective ortho halogenation of N-aryl amides and ureas via oxidative halodeboronation: harnessing boron reactivity for efficient C–halogen bond installation
From the themed collection: 2023 Chemical Science HOT Article Collection
Open Access Edge Article

Merging electrocatalytic alcohol oxidation with C–N bond formation by electrifying metal–ligand cooperative catalysts

For the first time, metal–ligand cooperative catalysts were electrified to merge molecular electrocatalytic alcohol oxidation with C–N bond formation (over 30 imines, F.E. up to 99%, energy efficiency increased by order of magnitude).

Graphical abstract: Merging electrocatalytic alcohol oxidation with C–N bond formation by electrifying metal–ligand cooperative catalysts
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Net-clipping as a top-down approach for the prediction of topologies of MOFs built from reduced-symmetry linkers

Net-clipping is a strategy for the topological prediction of MOFs built with reduced-symmetry linkers. It is based on the deconstruction of nets by clipping half of the connectivity in tetrahedral, hexagonal, cubic or hexagonal prismatic nodes.

Graphical abstract: Net-clipping as a top-down approach for the prediction of topologies of MOFs built from reduced-symmetry linkers
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Conformational control enables boroxine-to-boronate cage metamorphosis

The conformational control of boronic acid building blocks allows efficient self-assembly into a tetrahedral boroxine cage. The nano-sized cage displays molecular metamorphosis, converting from a boroxine tetrapod to a boronate bipyramid.

Graphical abstract: Conformational control enables boroxine-to-boronate cage metamorphosis
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Revisiting organic charge-transfer cocrystals for wide-range tunable, ambient phosphorescence

A wide-range tunable triplet charge-transfer (3CT) phosphorescence emission is achieved by an intermolecular through-space charge-transfer cocrystallization approach using pyromellitic diimide as the acceptor and different donors.

Graphical abstract: Revisiting organic charge-transfer cocrystals for wide-range tunable, ambient phosphorescence
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Controllable synthesis of a Na-enriched Na4V2(PO4)3 cathode for high-energy sodium-ion batteries: a redox-potential-matched chemical sodiation approach

A phenazine-mediated ambient chemical sodiation strategy is first proposed to controllably synthesize a Na-enriched Na4V2(PO4)3 cathode, which serves as an endogenous Na+ reservoir to compensate for irreversible sodium loss of sodium-ion full cells.

Graphical abstract: Controllable synthesis of a Na-enriched Na4V2(PO4)3 cathode for high-energy sodium-ion batteries: a redox-potential-matched chemical sodiation approach
From the themed collection: 130th Anniversary of Wuhan University
Open Access Edge Article

Skeletal rearrangement through photocatalytic denitrogenation: access to C-3 aminoquinolin-2(1H)-ones

Selective installation of an amino group on heterocyclic ring employing the skeletal editing approach has been explored. We discussed a regioselective denitrogenative amination strategy to access C-3 aminoquinolin-2(1H)-ones utilizing 3-ylideneoxindoles and TMSN3 as an aminating agent.

Graphical abstract: Skeletal rearrangement through photocatalytic denitrogenation: access to C-3 aminoquinolin-2(1H)-ones
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

N-Acyloxymethyl-phthalimides deliver genotoxic formaldehyde to human cells

N-Acyloxymethyl-phthalimides are esterase-sensitive chemical tools that enable controllable delivery of formaldehyde to human cells.

Graphical abstract: N-Acyloxymethyl-phthalimides deliver genotoxic formaldehyde to human cells
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Trifluoromethylarylation of alkenes using anilines

This work unlocks the use of anilines in the selective trifluoromethylarylation of olefins via a mild protocol that avoids transition metals, expensive photocatalysts and additives, where hexafluoroisopropanol is a unique solvent that promotes it.

Graphical abstract: Trifluoromethylarylation of alkenes using anilines
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

EnzyKR: a chirality-aware deep learning model for predicting the outcomes of the hydrolase-catalyzed kinetic resolution

EnzyKR is designed to guide the identification of hydrolase scaffolds for resolving a racemic substrate mixture for stereoselective synthesis.

Graphical abstract: EnzyKR: a chirality-aware deep learning model for predicting the outcomes of the hydrolase-catalyzed kinetic resolution
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Transient co-assemblies of micron-scale colloids regulated by ATP-fueled reaction networks

An ATP-fueled DNA based enzymatic reaction network regulates transient co-assemblies of micron-scale colloids. The system produces minimal waste, shows ATP-dependent behavior, and can be reactivated for up to three consecutive cycles.

Graphical abstract: Transient co-assemblies of micron-scale colloids regulated by ATP-fueled reaction networks
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

New insights into H2 activation by intramolecular frustrated Lewis pairs based on aminoboranes: the local electrophilicity index of boron as a suitable indicator to tune the reversibility of the process

The condensed-to-boron electrophilicity index (ωB) is a tunable property to rationally perform modifications for reaching reversibility in H2 activation by intramolecular aminoborane frustrated Lewis pairs.

Graphical abstract: New insights into H2 activation by intramolecular frustrated Lewis pairs based on aminoboranes: the local electrophilicity index of boron as a suitable indicator to tune the reversibility of the process
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Unveiling polyamorphism and polyamorphic interconversions in pharmaceuticals: the peculiar case of hydrochlorothiazide

Three polyamorphs of hydrochlorothiazide with distinct physicochemical properties were discovered. MD simulations show different dihedral angle distributions in polyamorphs I and II. Polyamorphs I and III were converted into polyamorph II.

Graphical abstract: Unveiling polyamorphism and polyamorphic interconversions in pharmaceuticals: the peculiar case of hydrochlorothiazide
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Directing group assisted para-selective C–H alkynylation of unbiased arenes enabled by rhodium catalysis

A first work on rhodium-catalyzed para-selective C–H alkynylation has been reported and its mechanistic insights were gleaned from experimental and computational studies.

Graphical abstract: Directing group assisted para-selective C–H alkynylation of unbiased arenes enabled by rhodium catalysis
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Resolving a guanine-quadruplex structure in the SARS-CoV-2 genome through circular dichroism and multiscale molecular modeling

Parallel or hybrid? A combination of multiscale molecular modeling and circular dichroism is used to predict a G-quadruplex structure at atomistic resolution in the SARS-CoV-2 genome.

Graphical abstract: Resolving a guanine-quadruplex structure in the SARS-CoV-2 genome through circular dichroism and multiscale molecular modeling
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Electron count and ligand composition influence the optical and chiroptical signatures of far-red and NIR-emissive DNA-stabilized silver nanoclusters

AgN-DNAs emitters at the far red/NIR spectral border have either 6 or 8 valence electrons and at least three distinct ligand compositions. Stokes shift magnitude and CD signatures are correlated with ligand composition.

Graphical abstract: Electron count and ligand composition influence the optical and chiroptical signatures of far-red and NIR-emissive DNA-stabilized silver nanoclusters
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

NMR exchange dynamics studies of metal-capped cyclodextrins reveal multiple populations of host–guest complexes in solution

Utilizing lanthanide-modified cyclodextrins and implementing the 19F-paraGEST method, up to three different co-existing populations of Ln-β-CD-guest complexes were experimentally identified, despite having similar thermodynamic and kinetic properties.

Graphical abstract: NMR exchange dynamics studies of metal-capped cyclodextrins reveal multiple populations of host–guest complexes in solution
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Generative organic electronic molecular design informed by quantum chemistry

Reinforcement learning methods, coupled with quantum chemistry, discover a diverse set of organic singlet fission and triplet–triplet annihilation candidates.

Graphical abstract: Generative organic electronic molecular design informed by quantum chemistry
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Photocyclization by a triplet–triplet annihilation upconversion pair in water – avoiding UV-light and oxygen removal

A commercially available upconversion pair is applied to promote a photocyclization for the synthesis of bioisosteres using green light irradiation. The reaction concept is enabled to run in water without oxygen removal by a micellar medium.

Graphical abstract: Photocyclization by a triplet–triplet annihilation upconversion pair in water – avoiding UV-light and oxygen removal
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

A tunable family of CAAC-ruthenium olefin metathesis catalysts modularly derived from a large-scale produced ibuprofen intermediate

A tunable family of ibuprofen intermediate-derived CAAC-base complexes for different applications, dependent from the size of the N-aryl substituent.

Graphical abstract: A tunable family of CAAC-ruthenium olefin metathesis catalysts modularly derived from a large-scale produced ibuprofen intermediate
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Hybrid bronzes: mixed-valence organic–inorganic metal oxides as a tunable material platform

Hybrid bronzes are air/water-stable mixed-valence organic–inorganic metal oxides displaying tunable optoelectronic properties and high conductivity relevant for energy-related applications.

Graphical abstract: Hybrid bronzes: mixed-valence organic–inorganic metal oxides as a tunable material platform
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

“Freedom of design” in chemical compound space: towards rational in silico design of molecules with targeted quantum-mechanical properties

This work demonstrates that “freedom of design” is a fundamental and emergent property of chemical compound space. Such intrinsic flexibility enables rational design of distinct molecules sharing an array of targeted quantum-mechanical properties.

Graphical abstract: “Freedom of design” in chemical compound space: towards rational in silico design of molecules with targeted quantum-mechanical properties
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Microscopic insight into the shaping of MOFs and its impact on CO2 capture performance

The traditional synthesis method produces microcrystalline powdered MOFs, which prevents direct implementation in real-world applications which demand strict control of shape, morphology and physical properties.

Graphical abstract: Microscopic insight into the shaping of MOFs and its impact on CO2 capture performance
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Benchmarking the placement of hydrosulfide in the Hofmeister series using a bambus[6]uril-based ChemFET sensor

Bambusuril-containing ChemFET sensor membranes show excellent selectivity for HS and inform on its placement in the Hofmeister series.

Graphical abstract: Benchmarking the placement of hydrosulfide in the Hofmeister series using a bambus[6]uril-based ChemFET sensor
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Dimeric tetrabromo-p-quinodimethanes: synthesis and structural/electronic properties

High bromine containing dimers of tetrabromoanthra-p-quinodimethane as appealing building-blocks for organic synthesis. Thorough study of their isomerism and optoelectronic properties.

Graphical abstract: Dimeric tetrabromo-p-quinodimethanes: synthesis and structural/electronic properties
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Ortho-Selective amination of arene carboxylic acids via rearrangement of acyl O-hydroxylamines

Aromatic acyl O-hydroxylamines, synthesised in one straightforward step, undergo rearrangement under simple conditions to give ortho-aminated arenes. For benzoic acid-derived substrates, this leads directly to unprotected anthranilic acids.

Graphical abstract: Ortho-Selective amination of arene carboxylic acids via rearrangement of acyl O-hydroxylamines
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

A macrocyclic quinol-containing ligand enables high catalase activity even with a redox-inactive metal at the expense of the ability to mimic superoxide dismutase

Manganese, iron, and zinc complexes with the macrocyclic quinol-containing ligand H4qp4 are highly active and durable catalysts for the dismutation of hydrogen peroxide but do not efficiently dismutate superoxide.

Graphical abstract: A macrocyclic quinol-containing ligand enables high catalase activity even with a redox-inactive metal at the expense of the ability to mimic superoxide dismutase
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

A unified strategy for the synthesis of aldohexoses by boronate assisted assembly of CH2X2 derived C1-building blocks

The synthesis of aldohexoses from CH2X2 derived C1-building blocks relies on Matteson homologation and strategically applied, boron mediated olefinations. A 25 min video tutorial is available via QR-code or this link: https://youtu.be/vXy5oVavJUU.

Graphical abstract: A unified strategy for the synthesis of aldohexoses by boronate assisted assembly of CH2X2 derived C1-building blocks
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Interrogating bioinspired ESIPT/PCET-based Ir(III)-complexes as organelle-targeted phototherapeutics: a redox-catalysis under hypoxia to evoke synergistic ferroptosis/apoptosis

We investigated organelle-targeted bioinspired ESIPT/PCET-based Ir(iii)-complexes as promising (photo)chemotherapeutic lead compounds which actively operational in redox-catalysis under hypoxia to evoke synergistic ferroptosis/apoptosis.

Graphical abstract: Interrogating bioinspired ESIPT/PCET-based Ir(iii)-complexes as organelle-targeted phototherapeutics: a redox-catalysis under hypoxia to evoke synergistic ferroptosis/apoptosis
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Kinetics of ligand exchange in solution: a quantitative mass spectrometry approach

Delayed reactant labelling can provide thermodynamic parameters (ΔG, ΔH, and ΔS) of solution equilibria using ESI-MS monitoring. As a proof of concept, we investigated the equilibria of pyridine ligands with macrocyclic porphyrin cage complexes.

Graphical abstract: Kinetics of ligand exchange in solution: a quantitative mass spectrometry approach
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Stabilisation of the RirA [4Fe–4S] cluster results in loss of iron-sensing function

The regulator RirA senses Fe through its [4Fe–4S] cluster, which may have only three Cys ligands from the protein. Addition of a likely fourth Asp ligand stabilised the cluster, rendering it unable to sense Fe and locked into its DNA-binding state.

Graphical abstract: Stabilisation of the RirA [4Fe–4S] cluster results in loss of iron-sensing function
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

A natural polyphenol activates and enhances GPX4 to mitigate amyloid-β induced ferroptosis in Alzheimer's disease

Tannic acid (TA) mitigates ferroptosis induced by amyloid β-Fe in Alzheimer's disease (AD) through a multipronged activity. TA activates and enhances the GPX4 levels to counteract the complex interaction between AD and ferroptosis.

Graphical abstract: A natural polyphenol activates and enhances GPX4 to mitigate amyloid-β induced ferroptosis in Alzheimer's disease
Open Access Edge Article

Dynamic-dependent selectivity in a bisphosphine iron spin crossover C–H insertion/π-coordination reaction

Organometallic reaction selectivity is governed by dynamic motion rather than transition states or spin crossover.

Graphical abstract: Dynamic-dependent selectivity in a bisphosphine iron spin crossover C–H insertion/π-coordination reaction
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Improving the molecular spin qubit performance in zirconium MOF composites by mechanochemical dilution and fullerene encapsulation

Mechanochemical encapsulation of C60 fullerene leads to a change in selectivity in the topology outcome and a significant increase in coherence among spin-active centers embedded in a moderately porous zirconium PCN-223 porphyrinic framework.

Graphical abstract: Improving the molecular spin qubit performance in zirconium MOF composites by mechanochemical dilution and fullerene encapsulation
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Studying manganese carbonyl photochemistry in a permanently porous metal–organic framework

Photo-liberation of CO from a Mn(diimine)(CO)3Br moiety anchored within a permanently porous MOF support is studied. The crystallinity and structural flexibility of the MOF allows crystallographic snapshots of the photolysis products to be obtained.

Graphical abstract: Studying manganese carbonyl photochemistry in a permanently porous metal–organic framework
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Suitability of a diamine functionalized metal–organic framework for direct air capture

A comprehensive examination of mmen-Mg2(dobpdc) as a direct air capture adsorbent to determine its practical feasibility and performance for potential industrialization in mitigating climate change by reducing atmospheric CO2 levels.

Graphical abstract: Suitability of a diamine functionalized metal–organic framework for direct air capture
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Photoinduced iron-catalyzed C–H alkylation of polyolefins

A method for chemically introducing diverse polar groups into polyolefins via photoinduced iron-catalyzed C–H bond alkylation is reported. Diverse functional groups and polyolefins could be tolerated, and the multiply functionalized polymer could be synthesized through a module-assembled process.

Graphical abstract: Photoinduced iron-catalyzed C–H alkylation of polyolefins
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

A transient vesicular glue for amplification and temporal regulation of biocatalytic reaction networks

A transient vesicular assembly enables gluing of enzymes, with augmented catalysis. Efficient temporal control of the enzyme activities is achieved even in complex reaction networks.

Graphical abstract: A transient vesicular glue for amplification and temporal regulation of biocatalytic reaction networks
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Boroles from alumoles: accessing boroles with alkyl-substituted backbones via transtrielation

The synthesis of monomeric 2,3,4,5-tetraalkyl-substituted boroles via metallacycle transfer from an alumole is reported.

Graphical abstract: Boroles from alumoles: accessing boroles with alkyl-substituted backbones via transtrielation
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Role of mutations in a chemoenzymatic enantiodivergent C(sp3)–H insertion: exploring the mechanism and origin of stereoselectivity

A molecular level understanding into the role of mutations in a cytochrome P450 catalyzed enantiodivergent carbene insertion reaction is provided through the use of computational tools.

Graphical abstract: Role of mutations in a chemoenzymatic enantiodivergent C(sp3)–H insertion: exploring the mechanism and origin of stereoselectivity
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Push-pull photochromic dyes for semi-transparent solar cells with light-adjustable optical properties and high color-rendering index

Using push–pull photochromic dyes with carbazole units, we have fabricated translucent photovoltaic devices that vary their transparency with light intensity and maintain a high colour rendering index.

Graphical abstract: Push-pull photochromic dyes for semi-transparent solar cells with light-adjustable optical properties and high color-rendering index
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

A visible-light-driven molecular motor based on barbituric acid

Yeehaw! The rotation of a visible-light-driven molecular motor based on barbituric acid is tamed by a hydrogen bonding “lasso” mechanism between its serendipitously-formed tertiary hydroxy stereocentre and its lower half carbonyl groups.

Graphical abstract: A visible-light-driven molecular motor based on barbituric acid
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Tidying up the conformational ensemble of a disordered peptide by computational prediction of spectroscopic fingerprints

Pairing experiments with simulations, we predict spectroscopic fingerprints, enhancing understanding of disordered peptides' conformational ensembles. This helps rationalize elusive structure-spectra relationships for these peptides and proteins.

Graphical abstract: Tidying up the conformational ensemble of a disordered peptide by computational prediction of spectroscopic fingerprints
Open Access Edge Article

Fragment expansion with NUDELs – poised DNA-encoded libraries

Fragment growing using poised DNA-encoded libraries, which allow the coupling of a targeted active fragment, allows the optimisation of fragment hits to potent compounds in a single operation, illustrated by the discovery of a 51 nM BRD4 ligand.

Graphical abstract: Fragment expansion with NUDELs – poised DNA-encoded libraries
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

2,5-disubstituted bicyclo[2.1.1]hexanes as rigidified cyclopentane variants

Identification of rigid counterparts for common flexible scaffolds is crucial to the advancement of medicinal chemistry. Herein, synthesis of new bicyclo[2.1.1]hexanes to act as rigidified cyclopentanes is described.

Graphical abstract: 2,5-disubstituted bicyclo[2.1.1]hexanes as rigidified cyclopentane variants
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Continuous flow synthesis of pyridinium salts accelerated by multi-objective Bayesian optimization with active learning

Human-in-the-loop experimentation enables interactive machine learning for continuous flow chemistry reaction planning and optimization.

Graphical abstract: Continuous flow synthesis of pyridinium salts accelerated by multi-objective Bayesian optimization with active learning
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Programmed guest confinement via hierarchical cage to cage transformations

A novel methodology based on the use of phenanthrenequinone is applied to selectively change the subcomponent of TPMA-based cages, thus controlling inclusion ratio of competing guests differing in size or chirality.

Graphical abstract: Programmed guest confinement via hierarchical cage to cage transformations
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Ultrabright two-photon excitable red-emissive fluorogenic probes for fast and wash-free bioorthogonal labelling in live cells

Our best fluorogenic probe enables live-cell imaging with high-contrast and no need for washing steps.

Graphical abstract: Ultrabright two-photon excitable red-emissive fluorogenic probes for fast and wash-free bioorthogonal labelling in live cells
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

Terminal methylene phosphonium ions: precursors for transient monosubstituted phosphinocarbenes

Diprotic terminal methylene phosphonium ions were prepared using bulky N-heterocyclic imine substituents. Deprotonation yields transient monosubstituted phosphinocarbenes, which insert into the C[double bond, length as m-dash]C bond of a phenyl ring via a Buchner ring expansion.

Graphical abstract: Terminal methylene phosphonium ions: precursors for transient monosubstituted phosphinocarbenes
From the themed collection: #MyFirstChemSci 2023
Open Access Edge Article

A highly enantioselective intramolecular 1,3-dipolar cycloaddition yields novel pseudo-natural product inhibitors of the Hedgehog signalling pathway

Synthesis of pyrrolo[3,2-c]quinoline pseudo-natural products by means of a highly enantioselective intramolecular 1,3-dipolar cycloaddition yielded a novel Hedgehog signalling inhibitor chemotype that targets the Smoothened protein.

Graphical abstract: A highly enantioselective intramolecular 1,3-dipolar cycloaddition yields novel pseudo-natural product inhibitors of the Hedgehog signalling pathway
From the themed collection: #MyFirstChemSci 2023
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About this collection

This themed collection highlights and celebrates articles shared by our authors using the #MyFirstChemSci hashtag on social media in 2023. This collection covers a diverse range of research from authors publishing in Chemical Science for the first time, from researchers with their first ever ChemSci publication to those with their first corresponding-author ChemSci publication.

If you are publishing in Chemical Science for the first time, please do share your work on social media using #MyFirstChemSci or get in touch with us via email (chemicalscience-rsc@rsc.org) and we will be delighted to highlight your publication!

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