Celebrating 10 years of Chemical Science
Welcome to the first of our special anniversary issues planned for this year, marking 10 years since Chemical Science published its first issue, back in July 2010.
Grafted semiconducting polymer amphiphiles for multimodal optical imaging and combination phototherapy
This review summarizes the applications of grafted semiconducting polymer amphiphiles (SPAs) as multimodal optical nanoagents for cancer imaging and combination phototherapy.
The endeavor of vibration-induced emission (VIE) for dynamic emissions
The emission response for vibration-induced emission luminogens is highly sensitive to the encountered steric hindrance during the planarization process such that a tiny structural variation could induce an obvious change in fluorescence.
Defunctionalisation catalysed by boron Lewis acids
The combination of boron Lewis acid catalysts and hydride sources enables the cleavage of various carbon–heteroatom bonds.
The evolution of molecular machines through interfacial nanoarchitectonics: from toys to tools
Molecular machines can be made more useful with interfacial nanoarchitectonics.
Current advances in tin cluster chemistry
Clusters containing tin atoms show a huge variety of molecular structures, chemical as well as physical properties.
Light Opens a New Window for N-Heterocyclic Carbene Catalysis
Development and application of ubiquitin-based chemical probes
This article reviews the design, synthesis, and application of different classes of Ub-based chemical probes.
Synthesis of azetidines by aza Paternò–Büchi reactions
This review discusses the current scope and limitations of the [2 + 2] photocycloaddition reaction between an imine and an alkene component, the aza Paternò–Büchi reaction, and highlights recent improvements within this area of research.
Retrosynthetic strategies and their impact on synthesis of arcutane natural products
Decisions, decisions, decisions: the interplay between different retrosynthetic strategies in the synthesis of the highly bridged, polycyclic arcutane natural products.
Palladium-catalyzed direct asymmetric C–H bond functionalization enabled by the directing group strategy
This minireview introduces Pd-catalyzed direct asymmetric C–H functionalization reactions using a directing group strategy.
Microfluidic systems for rapid antibiotic susceptibility tests (ASTs) at the single-cell level
Recent developments of microfluidics-based antibiotic susceptibility tests (ASTs) at the single-cell or single-molecule level are summarized for guiding antibiotic treatment.
From reactive carbenes to chiral polyether macrocycles in two steps – synthesis and applications made easy?
Chiral polyether macrocycles are versatile molecules.
Electrodeposition of (hydro)oxides for an oxygen evolution electrode
This minireview looks at recent electrodeposition strategies for metal (hydro)oxide design and water oxidation applications, unveiling the unique properties and underlying principles of electrodeposited metal (hydro)oxides in the OER.
On the electronic structure and hydrogen evolution reaction activity of platinum group metal-based high-entropy-alloy nanoparticles
RuRhPdIrPt high-entropy-alloy nanoparticles with a broad and featureless valence band spectrum show high hydrogen evolution reaction activity.
Triple the fun: tris(ferrocenyl)arene-based gold(I) complexes for redox-switchable catalysis
Trinuclear gold(I) complexes of C3-symmetric tris(ferrocenyl)arene-based tris-phosphanes with four accessible oxidation states catalyse the ring-closing isomerisation of N-(2-propyn-1-yl)benzamide with different rates depending on their redox state.
Hierarchical nanosheets built from superatomic clusters: properties, exfoliation and single-crystal-to-single-crystal intercalation
Designer inorganic nanoblocks encrypt 2D superatomic crystals with in-plane anisotropy, quasi-chiral domains and rich physicochemical properties.
Phenol-like group functionalized graphene quantum dots structurally mimicking natural antioxidants for highly efficient acute kidney injury treatment
Phenol-like group functionalized graphene quantum dots that structurally mimic natural antioxidants are constructed as high-efficacy reactive oxygen species scavengers for acute kidney injury antioxidative therapy.
Extraordinary Electrochemical Stability and Extended Polaron Delocalization of Ladder-Type Polyaniline-Analogous Polymers
The influences of carbon donor ligands on biomimetic multi-iron complexes for N2 reduction
High-spin diiron alkylidenes give insight into the electronic structure and functional relevance of carbon in the FeMoco active site of nitrogenase.
Total synthesis of biseokeaniamides A–C and late-stage electrochemically-enabled peptide analogue synthesis
A late-stage electrochemical decarboxylation enables rapid access to structural analogues of biseokeaniamides A–C, cytotoxic lipopeptide natural products.
Rules for the design of aza-glycine stabilized triple-helical collagen peptides
Guidelines for incorporating aza-glycine residues in collagen peptides are presented, detailing their effects on triple-helical thermal stability.
Unusually high α-proton acidity of prolyl residues in cyclic peptides
Kinetic and computational studies reveal that prolyl residues in cyclic peptides are substantially more acidic than other residues due to a stereoelectronic effect.
A neutral porous organic polymer host for the recognition of anionic dyes in water
Using the principles of supramolecular design, we demonstrate that a urea-functionalized porous organic polymer can recognize anionic dyes in water.
Unravelling the intricate photophysical behavior of 3-(pyridin-2-yl)triimidazotriazine AIE and RTP polymorphs
TT-Py exhibits anti-Kasha and multiple emissive behaviour due to the copresence of rigid TT and partially conformationally free Py.
Dimensional reduction of the small-bandgap double perovskite Cs2AgTlBr6
The Ag–Tl perovskites provide the first clear evidence that quantum confinement can significantly alter the optical properties of 2D halide double perovskites.
Controlling thermal expansion within mixed cocrystals by tuning molecular motion capability
Thermal expansion behavior is tuned by incorporating motion-capable or -incapable molecules into organic solids.
Methylbismuth: an organometallic bismuthinidene biradical
Methylbismuth, the first organometallic non-stabilized bismuth(I) compound, was generated in the gas phase and characterized. Implications for its chemistry in the condensed phase were investigated.
A magnetic solder for assembling bulk covalent adaptable network blocks
Covalent adaptable networks (CANs) can be reprocessed and recycled relying on reversible covalent bond structures. Magnetic solders enable flexibly welding of bulk CAN blocks by the magnetothermal effect induced bond exchange reactions.
Discovery of a synthesis method for a difluoroglycine derivative based on a path generated by quantum chemical calculations
QCaRA successfully predicted a new synthetic path based on the reaction path network produced by quantum chemical calculation.
Orbital-free photophysical descriptors to predict directional excitations in metal-based photosensitizers
We report the descriptor substituent-induced exciton localization, which together with the excited-electron delocalization length concept, is able to quantify how functional groups affect the directionality of light-driven electronic excitations.
Cancer cell discrimination and dynamic viability monitoring through wash-free bioimaging using AIEgens
We present a series of AIEgens for cancer cell discrimination and dynamic viability monitoring.
Impact of substituents on molecular properties and catalytic activities of trinuclear Ru macrocycles in water oxidation
Conformational changes induced by ligand substituents in macrocyclic Ru complexes strongly affect their chemical and photocatalytic efficiencies in water oxidation.
Programmable synthesis of multiply arylated cubanes through C–H metalation and arylation
Cubane has attracted attention due to its unique 3D structure. Herein, we report the programmable synthesis of multiply arylated cubanes. The developed reaction allows the late-stage and regioselective installation of aryl groups.
Ultrathin two-dimensional conjugated metal–organic framework single-crystalline nanosheets enabled by surfactant-assisted synthesis
Ultrathin and large-sized 2D conjugated MOF single-crystalline nanosheets are synthesized, which allow fast ion diffusion and high utilization of active sites, and therefore exhibit remarkable performance for Li-ion batteries.
Biomimetic nanoscale metal–organic framework harnesses hypoxia for effective cancer radiotherapy and immunotherapy
Biomimetic Hf-DBP-Fe harnesses tumor hypoxia for cancer treatment via RT-RDT and CDT as well as synergistic combination with immune checkpoint blockade.
Synthesis of thioethers, arenes and arylated benzoxazoles by transformation of the C(aryl)–C bond of aryl alcohols
Aryl alcohols served as aryl agents by effective activation of C(aryl)–C(OH) bonds, and were transformed into corresponding thioether, arene, and arylated benzoxazole products in excellent yields.
SET processes in Lewis acid–base reactions: the tritylation of N-heterocyclic carbenes
Carbenes as single electron donors: the tritylation of N-heterocyclic carbenes proceeds via an initial SET step, giving highly reactive carbene radical cations and the trityl radical.
Transition-metal-free C(sp3)–H/C(sp3)–H dehydrogenative coupling of saturated heterocycles with N-benzyl imines
A unique transition-metal-free C(sp3)–H/C(sp3)–H dehydrocoupling of N-benzylimines with saturated heterocycles is presented using 2-azaallyl anions as super electron donors to initiate the generation of hydrogen atom abstracting aryl radicals.
Insights into the formation of metal carbon nanocomposites for energy storage using hybrid NiFe layered double hydroxides as precursors
The low-temperature formation mechanism of NiFe-carbon magnetic nanocomposites prepared using hybrid sebacate intercalated layered double hydroxides as precursors has been deciphered using a set of in situ characterization techniques.
Construction of heterometallic clusters with multiple uranium–metal bonds by using dianionic nitrogen–phosphorus ligands
Compared with the prevalent metal–metal bond in transition metals, examples of the actinide–metal bond in heterometallic clusters are rare.
Synthesis of secondary and tertiary amides without coupling agents from amines and potassium acyltrifluoroborates (KATs)
Oxidative amidation of potassium acyltrifluoroborates (KATs) and amines via trifluoroborate iminiums (TIMs) delivers amides without coupling agents. This unusual approach to amides can be applied for the late-stage modification of bioactive molecules and for solid-phase peptide synthesis.
Simple, scalable mechanosynthesis of metal–organic frameworks using liquid-assisted resonant acoustic mixing (LA-RAM)
We present a rapid and readily scalable methodology for the mechanosynthesis of diverse metal–organic frameworks (MOFs) in the absence of milling media typically required for other types of mechanochemical syntheses.
Enhanced CH3OH selectivity in CO2 hydrogenation using Cu-based catalysts generated via SOMC from GaIII single-sites
CuGax alloy nanoparticles supported on SiO2 can be obtained by surface organometallic chemistry. This catalyst is active and selective for the hydrogenation of CO2 to CH3OH, related to the formation of an optimal interface between Cu and GaIIIOx.
Controlled synthesis of organic two-dimensional nanostructures via reaction-driven, cooperative supramolecular polymerization
We report the kinetically controlled supramolecular polymerization of organic two-dimensional charge-transfer nanostructures via a chemical reaction (imine)-driven approach.
A new pentacyclic pyrylium fluorescent probe that responds to pH imbalance during apoptosis
A modified Vilsmeier–Haack reaction resulted in the synthesis of a pyrylium based turn-on fluorescent pH probe. The probe can monitor minute acidification and dynamic pH variation in cells during apoptosis with therapeutic chemo drugs.
Modulation of metal-azolate frameworks for the tunable release of encapsulated glycosaminoglycans
Clinical and pre-clinical GAG-based biotherapeutics were encapsulated within three metal-azolate frameworks (ZIF-8, ZIF-90, and MAF-7). The resulting MOF biocomposites show different loading capacity, biopreservation properties and release profiles.
Total scattering reveals the hidden stacking disorder in a 2D covalent organic framework
With total scattering methods and stacking fault simulations, we observe previously predicted random local layer offsets in a COF, which are typically disguised by the apparent crystallographic symmetry but strongly influence properties.
Accelerated microdroplet synthesis of benzimidazoles by nucleophilic addition to protonated carboxylic acids
We report a metal-free novel route for the accelerated synthesis of benzimidazole and its derivatives in the ambient atmosphere.
Revealing the molecular mechanisms of proteolysis of SARS-CoV-2 Mpro by QM/MM computational methods
The molecular mechanism of the proteolysis reaction catalyzed by SARS-CoV-2 Mpro, one of the enzymes essential for the replication process of the virus responsible for the COVID-19 pandemic, is described using computational QM/MM methods.
Deciphering the origin of million-fold reactivity observed for the open core diiron [HO–FeIII–O–FeIVO]2+ species towards C–H bond activation: role of spin-states, spin-coupling, and spin-cooperation
Our results unequivocally reveal the importance of spin states, spin coupling and spin cooperation in controlling the reactivity in dinuclear Fe-oxo species.
Insights into the behavior of nonanoic acid and its conjugate base at the air/water interface through a combined experimental and theoretical approach
The surface partitioning of a medium chain fatty acid and its conjugate base has been investigated through a combined experimental and theoretical approach of the multi-equilibria involved in the bulk phase and at the air/water interface.
Structural determinants of macrocyclization in substrate-controlled lanthipeptide biosynthetic pathways
To understand factors that determine ring pattern and stereochemistry of thioether cyclization of lanthipeptide natural products, the structures of five prochlorosins (blue) and two enterococcal cytolysins (red) were determined by NMR spectroscopy.
Conformational design concepts for anions in ionic liquids
Interchangeable functional groups for imide ions are investigated computationally, new ILs with low/high viscosity are designed a priori and experimentally characterised.
Luminescent tungsten(VI) complexes as photocatalysts for light-driven C–C and C–B bond formation reactions
A luminescent tungsten(VI) complex catalyses a broad spectrum of light-driven organic transformation reactions with high product yields and good functional group tolerance.
Continuous and scalable synthesis of a porous organic cage by twin screw extrusion (TSE)
Twin screw extrusion (TSE) is demonstrated as an alternative synthetic method for preparing a prolific porous organic cage.
Chemical synthesis of human syndecan-4 glycopeptide bearing O-, N-sulfation and multiple aspartic acids for probing impacts of the glycan chain and the core peptide on biological functions
Attaching heparan sulfate glycan on a peptide backbone can modulate biological functions of the glycan.
Triblock polyester thermoplastic elastomers with semi-aromatic polymer end blocks by ring-opening copolymerization
A new series of block polyester thermoplastic elastomers are prepared by a one-pot procedure; they show properties competitive or better than conventional materials and can be fully degraded after use.
Ultrafast amidation of esters using lithium amides under aerobic ambient temperature conditions in sustainable solvents
Using 2-methyl THF as solvent enables efficient and ultrafast amidation of esters by lithium amides at room temperature in air, edging closer towards reaching air- and moisture-compatible polar organometallic chemistry.
pH-Responsive Au(I)-disulfide nanoparticles with tunable aggregation-induced emission for monitoring intragastric acidity
The water-stable and pH-responsive Au(I)-disulfide NPs serve as a luminescent probe for monitoring intragastric acidity in an acid-suppressed therapy.
Cationic indium catalysts for ring opening polymerization: tuning reactivity with hemilabile ligands
This is an in-depth study into the role hemilabile ligands play in tuning stability and reactivity in cationic indium complexes.
Tuning reactivity layer-by-layer: formic acid activation on Ag/Pd(111)
Modified electronic structure of Ag monolayer on Pd(111) enhances reactivity of Ag towards formic acid.
In situ Raman study of the photoinduced behavior of dye molecules on TiO2(hkl) single crystal surfaces
In dye-sensitized solar cells (DSSCs), the TiO2/dye interface significantly affects photovoltaic performance.
A visible-light Paternò–Büchi dearomatisation process towards the construction of oxeto-indolinic polycycles
A scalable visible-light [2 + 2]-heterocycloaddition process allows the dearomatisation of indoles to complex biorelevant polycycles.
Oxidation promoted self-assembly of π-conjugated polymers
Conjugated block copolymers, where each block contains a unique electroactive group, allows selective block-oxidation in solution, which promotes reversible, redox-controlled self-assembly.
Efficient photocatalytic hydrogen evolution on single-crystalline metal selenide particles with suitable cocatalysts
Coloading of a Ni–Ru composite cocatalyst on a 700 nm-class single-crystalline particulate selenide photocatalyst improves its hydrogen evolution activity.
Kinetics of cooperative CO2 adsorption in diamine-appended variants of the metal–organic framework Mg2(dobpdc)
An in-depth investigation of the CO2 adsorption kinetics of a promising class of cooperative carbon capture materials offers new insight into their structure-performance properties.
A regioselectively 1,1′,3,3′-tetrazincated ferrocene complex displaying core and peripheral reactivity
A tetrazincated ferrocene complex displays divergent basicity towards aromatic substrates through either its core or peripheral ligands.
Halogen-directed chemical sialylation: pseudo-stereodivergent access to marine ganglioside epitopes
Sialic acids are conspicuous structural components of the complex gangliosides that regulate cellular processes.
Late-stage C(sp2)–H and C(sp3)–H glycosylation of C-aryl/alkyl glycopeptides: mechanistic insights and fluorescence labeling
C–H glycosylations of complex amino acids and peptides were accomplished through the assistance of triazole peptide-isosteres. The palladium-catalyzed glycosylation provided access to complex C-glycosides and fluorescent-labeled glycoamino acids.
About this collection
2020 marks the 10th anniversary of Chemical Science and to celebrate we are publishing a number of special birthday issues, to recognise and thank members of our community who have been supporting the journal and publishing in Chemical Science since we launched ten years ago. Many of these individuals feature as authors in this collection and, looking to the future, we have combined this with inviting a selection of researchers who are closer to the beginning of their careers, and who are new to publishing in Chemical Science. We hope that you enjoy reading this selection of articles, and that we can continue to provide an open and inclusive venue for both groups of researchers for many years to come.