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Themed collection Celebrating the Chemical Science in India - Leaders in the Field Symposium

27 items
Open Access Perspective

From CO2 activation to catalytic reduction: a metal-free approach

This review article documents the key developments in the metal-free catalytic reduction of CO2 into various energy intensive chemicals and fuels, and reductive functionalization of CO2 for the formation of new C–N bonds.

Graphical abstract: From CO2 activation to catalytic reduction: a metal-free approach
From the themed collection: Celebrating 10 years of Chemical Science
Open Access Edge Article

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.

Graphical abstract: Controlled synthesis of organic two-dimensional nanostructures via reaction-driven, cooperative supramolecular polymerization
From the themed collection: Celebrating 10 years of Chemical Science
Open Access Edge Article

Facile optimization of hierarchical topography and chemistry on magnetically active graphene oxide nanosheets

‘Confined-optimization’ of desired topography and appropriate chemistry on a magnetically-active and two-dimensional (2D) graphene oxide (GO) nanosheets is unprecedentedly achieved following a rapid and facile 1,4-conjugate addition reaction.

Graphical abstract: Facile optimization of hierarchical topography and chemistry on magnetically active graphene oxide nanosheets
From the themed collection: Celebrating 10 years of Chemical Science
Open Access Edge Article

In situ formation of transcriptional modulators using non-canonical DNA i-motifs

Herein, i-motif DNA-immobilized magnetic nanoparticles are used as templates to promote the in situ cycloaddition generating specific binders for i-motifs.

Graphical abstract: In situ formation of transcriptional modulators using non-canonical DNA i-motifs
Open Access Edge Article

Transition metal-free catalytic reduction of primary amides using an abnormal NHC based potassium complex: integrating nucleophilicity with Lewis acidic activation

An abnormal N-heterocyclic carbene (aNHC) based potassium complex was used as a transition metal-free catalyst for reduction of primary amides to corresponding primary amines under ambient conditions.

Graphical abstract: Transition metal-free catalytic reduction of primary amides using an abnormal NHC based potassium complex: integrating nucleophilicity with Lewis acidic activation
Open Access Edge Article

Is silver a mere terminal oxidant in palladium catalyzed C–H bond activation reactions?

We disclose an intriguing and a potentially general role for one of the most commonly used silver salt additives whose molecular understanding continues to remain rather vague in the contemporary practice of palladium catalysis.

Graphical abstract: Is silver a mere terminal oxidant in palladium catalyzed C–H bond activation reactions?
Open Access Edge Article

Zinc ion interactions in a two-dimensional covalent organic framework based aqueous zinc ion battery

We have demonstrated a hydroquinone stitched β-ketoenamine COF acting as an efficient organic cathode in an aqueous rechargeable zinc ion battery.

Graphical abstract: Zinc ion interactions in a two-dimensional covalent organic framework based aqueous zinc ion battery
Open Access Edge Article

Fatty acid based transient nanostructures for temporal regulation of artificial peroxidase activity

Natural systems access transient high energy self-assembled structures for temporal regulation of different biological functions through dissipative processes.

Graphical abstract: Fatty acid based transient nanostructures for temporal regulation of artificial peroxidase activity
From the themed collection: Editor’s Choice – Subi George
Open Access Edge Article

Bonding heterogeneity and lone pair induced anharmonicity resulted in ultralow thermal conductivity and promising thermoelectric properties in n-type AgPbBiSe3

Synergistic effect of bonding inhomogeneity and local off-centering within global cubic structure results in ultralow thermal conductivity of n-type AgPbBiSe3.

Graphical abstract: Bonding heterogeneity and lone pair induced anharmonicity resulted in ultralow thermal conductivity and promising thermoelectric properties in n-type AgPbBiSe3
Open Access Edge Article

Insights into the role of noncovalent interactions in distal functionalization of the aryl C(sp2)–H bond

How a series of noncovalent interactions (NCIs) determine the regiochemical outcome in a distal sp2 C–H functionalization reaction is presented.

Graphical abstract: Insights into the role of noncovalent interactions in distal functionalization of the aryl C(sp2)–H bond
Open Access Edge Article

Cu2+ selective chelators relieve copper-induced oxidative stress in vivo

We report highly selective, novel Cu2+ chelators that relieve copper induced oxidative stress in vivo indicating applicability toward assuaging copper-overload disorders.

Graphical abstract: Cu2+ selective chelators relieve copper-induced oxidative stress in vivo
Open Access Edge Article

Iridium-catalyzed enantioselective direct vinylogous allylic alkylation of coumarins

The first iridium-catalyzed enantioselective vinylogous allylic alkylation of coumarins is presented. Using easily accessible linear allylic carbonates as the allylic electrophile, this reaction installs unfunctionalized allyl groups at the γ-position of 4-methylcoumarins in an exclusively branched-selective manner generally in high yields with an excellent level of enantioselectivity (up to 99 : 1 er).

Graphical abstract: Iridium-catalyzed enantioselective direct vinylogous allylic alkylation of coumarins
Open Access Edge Article

Protein stabilization by tuning the steric restraint at the reverse turn

The incorporation of pseudoallylic strain by N-methylation at the solvent exposed loop in proteins leads to a stark increase in their thermodynamic stability that can be tuned by altering the amino acid composition.

Graphical abstract: Protein stabilization by tuning the steric restraint at the reverse turn
Open Access Edge Article

Taming a monomeric [Cu(η6-C6H6)]+ complex with silylene

Realization of a hitherto elusive unsupported η6 binding mode of benzene to a copper(I) cation employing silylene as a ligand. The back-donation from Cu to Si(II) diminishes the repulsion between d-electrons and the benzene ring and enforces the η6 binding mode.

Graphical abstract: Taming a monomeric [Cu(η6-C6H6)]+ complex with silylene
Open Access Edge Article

Aldehyde group driven aggregation-induced enhanced emission in naphthalimides and its application for ultradetection of hydrazine on multiple platforms

A new concept of formyl group induced ACQ to AIEE transformation is established in naphthalimide congeners. Also, ultradetection of hydrazine via Schiff base complexation over multiple platforms is presented.

Graphical abstract: Aldehyde group driven aggregation-induced enhanced emission in naphthalimides and its application for ultradetection of hydrazine on multiple platforms
Open Access Edge Article

Increasing the bioactive space of peptide macrocycles by thioamide substitution

Thioamide substitution into macrocyclic peptides increases the conformational rigidity of the backbone resulting in enhanced biological activity and metabolic stability.

Graphical abstract: Increasing the bioactive space of peptide macrocycles by thioamide substitution
Open Access Edge Article

Preferential targeting of i-motifs and G-quadruplexes by small molecules

Ligand-dependent regulation of gene expression has been delineated by targeting i-motifs and G-quadruplexes.

Graphical abstract: Preferential targeting of i-motifs and G-quadruplexes by small molecules
Open Access Edge Article

Nitro-enabled catalytic enantioselective formal umpolung alkenylation of β-ketoesters

A formal umpolung strategy is presented for the enantioselective installation of an alkenyl group with a terminal double bond at a tertiary center. This one-pot two-step sequence relies on the unique features of the nitro group, which after inverting the polarity of the alkenylating agent toward the desired bond formation, itself serves as a leaving group.

Graphical abstract: Nitro-enabled catalytic enantioselective formal umpolung alkenylation of β-ketoesters
Open Access Edge Article

Temporal switching of an amphiphilic self-assembly by a chemical fuel-driven conformational response

A unique redox active amphiphilic foldamer that undergoes transient conformation changes that amplify into observable morphology changes in its self-assembly.

Graphical abstract: Temporal switching of an amphiphilic self-assembly by a chemical fuel-driven conformational response
Open Access Edge Article

A general and facile chemical avenue for the controlled and extreme regulation of water wettability in air and oil wettability under water

A chemical approach for the regulation of oil (under water) and water (in air) wettability. The super-wetting properties are highly durable at harsh physical/chemical settings.

Graphical abstract: A general and facile chemical avenue for the controlled and extreme regulation of water wettability in air and oil wettability under water
Open Access Edge Article

Near UV-Visible electronic absorption originating from charged amino acids in a monomeric protein

We report 250–800 nm UV-Vis monomeric protein absorption originating from protein backbone–sidechain and sidechain–sidechain charge transfer transitions involving Lys/Glu residues.

Graphical abstract: Near UV-Visible electronic absorption originating from charged amino acids in a monomeric protein
Open Access Edge Article

DNA-barcoded labeling probes for highly multiplexed Exchange-PAINT imaging

We report the development of multiplexed cellular super-resolution imaging using DNA-barcoded binders.

Graphical abstract: DNA-barcoded labeling probes for highly multiplexed Exchange-PAINT imaging
Open Access Edge Article

Enhanced intersystem crossing in core-twisted aromatics

Core-twisted aromatics exhibit enhanced intersystem crossing upon photoexcitation when compared to their planar analogs.

Graphical abstract: Enhanced intersystem crossing in core-twisted aromatics
Open Access Edge Article

Conductance in a bis-terpyridine based single molecular breadboard circuit

We study conductance in a molecular breadboard junction accommodating up to 61 circuits and demonstrate switching between 4 conductance states.

Graphical abstract: Conductance in a bis-terpyridine based single molecular breadboard circuit
Open Access Edge Article

Rhodium catalyzed diastereoselective synthesis of 2,2,3,3-tetrasubstituted indolines from N-sulfonyl-1,2,3-triazoles and ortho-vinylanilines

An efficient diastereoselective rhodium catalyzed synthesis of indolines possessing two contiguous tetrasubstituted carbon centers has been achieved with good to excellent yields using ortho-vinylanilines and iminocarbenes derived from N-sulfonyl-1,2,3-triazoles.

Graphical abstract: Rhodium catalyzed diastereoselective synthesis of 2,2,3,3-tetrasubstituted indolines from N-sulfonyl-1,2,3-triazoles and ortho-vinylanilines
Open Access Edge Article

Chemical sensing in two dimensional porous covalent organic nanosheets

Covalent organic nanosheets (CONs) were synthesised from imide functionalised COFs. TfpBDH-CONs exhibit a "turn-on" detection capability for 2,4,6-trinitrophenol in the solid state, but show a "turn-off" detection in the dispersion state.

Graphical abstract: Chemical sensing in two dimensional porous covalent organic nanosheets
Open Access Edge Article

Stepwise isolation of low-valent, low-coordinate Sn and Pb mono- and dications in the coordination sphere of platinum

Halide groups are sequentially removed from platinum complexes containing tin and lead dihalide ligands, creating novel mono- and dicationic complexes.

Graphical abstract: Stepwise isolation of low-valent, low-coordinate Sn and Pb mono- and dications in the coordination sphere of platinum
27 items

About this collection

In October 2019, Chemical Science supported IISER Kolkata, India in hosting a Leaders in the Field Symposium, which showcased innovative chemistry research from both established and early career researchers in India. This specially curated collection includes recent Chemical Science articles authored by the presenters and organisers of the Leaders in the Field Symposium and as with all Chemical Science articles – they are all completely free to access and read. We hope you enjoy browsing through this collection.

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