Themed collection In celebration of Chinese New Year
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On the interface reactions and stability of nonfullerene organic solar cells
Interface instability of emerging nonfullerene organic solar cells has been discussed, with respect to the phenomena, mechanism of interfacial reactions and strategies proposed to improve the interfacial stability of devices.
Chem. Sci., 2022,13, 4714-4739
https://doi.org/10.1039/D1SC07269B
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NIR TADF emitters and OLEDs: challenges, progress, and perspectives
This review presents the recent progress of NIR TADF emitters along with their molecular design strategies and photophysical properties, as well as the electroluminescence performance data of the emitters and their OLEDs.
Chem. Sci., 2022,13, 8906-8923
https://doi.org/10.1039/D2SC02201J
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Cu-catalyzed enantioselective decarboxylative cyanation via the synergistic merger of photocatalysis and electrochemistry
Proof of concept enantioselective transformation via photoelectrocatalysis was reported on Cu-catalyzed enantioselective decarboxylative cyanation, which features mild conditions, high enantioselectivity and a reasonable range of functionalities.
Chem. Sci., 2023,14, 705-710
https://doi.org/10.1039/D2SC05428K
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A crystal growth kinetics guided Cu aerogel for highly efficient CO2 electrolysis to C2+ alcohols
Controlling crystal growth kinetics using different reductants is an efficient strategy to modulate the surficial chemistry micro-circumstance of Cu aerogels, enabling the creation of efficient surface sites for increasing C2+ product selectivity.
Chem. Sci., 2023,14, 310-316
https://doi.org/10.1039/D2SC04961A
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Modular synthesis, host–guest complexation and solvation-controlled relaxation of nanohoops with donor–acceptor structures
A modular synthetic approach based on cyclocondensation reaction is introduced to produce nine nanohoops with tunable donor–acceptor structures.
Chem. Sci., 2022,13, 14080-14089
https://doi.org/10.1039/D2SC05804A
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Live-cell RNA imaging using the CRISPR-dCas13 system with modified sgRNAs appended with fluorescent RNA aptamers
The development of RNA imaging strategies in live cells is essential to improve our understanding of their role in various cellular functions.
Chem. Sci., 2022,13, 14032-14040
https://doi.org/10.1039/D2SC04656C
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Robust singlet fission process in strong absorption π-expanded diketopyrrolopyrroles
Via π-expanded design strategy, a new robust SF system, Ex-DPP, has been successfully developed with high extinction coefficient, good molecular rigidity and excellent SF properties.
Chem. Sci., 2022,13, 13907-13913
https://doi.org/10.1039/D2SC05580E
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Alkylboronic acids as alkylating agents: photoredox-catalyzed alkylation reactions assisted by K3PO4
An alkylation method using inorganophosphorus-activated alkylboronic acids to act as alkyl radical precursors has been developed. This method can be used for direct C–B chlorination, cyanation, vinylation, alkynylation, and allylation.
Chem. Sci., 2022,13, 13466-13474
https://doi.org/10.1039/D2SC05521J
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Surfactant-chaperoned donor–acceptor–donor NIR-II dye strategy efficiently circumvents intermolecular aggregation to afford enhanced bioimaging contrast
PEGylation of donor–acceptor–donor (D–A–D) dyes causes inherent self-assembly thus unavoidably reducing their intrinsic brightness. We develop a new surfactant-chaperoned strategy to conquer the intermolecular aggregation of NIR-II fluorophores.
Chem. Sci., 2022,13, 13201-13211
https://doi.org/10.1039/D2SC05651H
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Nickel-catalyzed enantioselective α-heteroarylation of ketones via C–F bond activation to construct all-carbon quaternary stereocenters
Nickel-catalyzed asymmetric α-heteroarylation of ketones with fluorinated heteroarenes is reported via C–F bond activation.
Chem. Sci., 2022,13, 12498-12502
https://doi.org/10.1039/D2SC03409C
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Exhaustive Baeyer–Villiger oxidation: a tailor-made post-polymerization modification to access challenging poly(vinyl acetate) copolymers
Exhaustive Baeyer–Villiger (BV) oxidation, which was developed by a direct optimization on polymers (DOP) approach, provides a general solution for preparing synthetically challenging poly(vinyl acetate) statistical and block copolymers.
Chem. Sci., 2022,13, 11746-11754
https://doi.org/10.1039/D2SC03492A
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Visible-light-induced indole synthesis via intramolecular C–N bond formation: desulfonylative C(sp2)–H functionalization
LED visible-light-induced redox neutral desulfonylative C(sp2)–H functionalization for the synthesis of N-substituted indoles in the absence of any additional additive has been established on the basis of KIE, Hammett plotting and DFT calculations.
Chem. Sci., 2022,13, 11623-11632
https://doi.org/10.1039/D2SC02822K
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Carbazolylgold(III) complexes with thermally activated delayed fluorescence switched on by ligand manipulation as high efficiency organic light-emitting devices with small efficiency roll-offs
Switch on of TADF can be achieved by tuning the excited state energy levels via ligand manipulation of the carbazolylgold(III) C^C^N complexes. The resulting OLEDs show maximum EQEs of over 11% and efficiency roll-offs of down to less than 1%.
Chem. Sci., 2022,13, 10129-10140
https://doi.org/10.1039/D2SC03037C
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Support stabilized PtCu single-atom alloys for propane dehydrogenation
This paper describes PtCu single-atom alloys supported on copper phyllosilicate via Cu+–O–Si. The catalyst exhibits sintering resistance in propane dehydrogenation reaction without sacrificing activity and selectivity.
Chem. Sci., 2022,13, 9537-9543
https://doi.org/10.1039/D2SC03723H
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Root-aligned SMILES: a tight representation for chemical reaction prediction
We propose the root-aligned SMILES (R-SMILES), which specifies a tightly aligned one-to-one mapping between the product and the reactant SMILES for more efficient sequence-based synthesis prediction.
Chem. Sci., 2022,13, 9023-9034
https://doi.org/10.1039/D2SC02763A
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Selective desaturation of amides: a direct approach to enamides
A novel and regioselective N-α,β-desaturation and dehydrogenative N-β-halogenation of amides was developed. This chemistry with high selectivity and broad substrate scope provides an efficient approach to enamides from simple amides.
Chem. Sci., 2022,13, 9056-9061
https://doi.org/10.1039/D2SC02210A
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Phenothiazine-based covalent organic frameworks with low exciton binding energies for photocatalysis
We report the construction of phenothiazine-based covalent organic frameworks, which exhibited diverse structures, the feasibility of bandgap engineering, and unprecedented ultralow exciton binding energy of ∼50 meV for photocatalytic polymerization.
Chem. Sci., 2022,13, 8679-8685
https://doi.org/10.1039/D2SC02503E
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A DNAzyme-augmented bioorthogonal catalysis system for synergistic cancer therapy
A DNAzyme-augmented and tumor-targeted bioorthogonal catalysis system is constructed for synergistic cancer therapy. It promotes the generation of Cu(I) and ROS using endogenous H2O2, thereby achieving in situ drug synthesis and chemodynamic therapy.
Chem. Sci., 2022,13, 7829-7836
https://doi.org/10.1039/D2SC02050E
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Cu-catalyzed carboboration of acetylene with Michael acceptors
A copper-catalyzed three-component carboboration of acetylene with B2Pin2 and Michael acceptors was achieved. The small acetylene molecule enabled faster rate of borylcupration and easier C–C bond formation compared with substituted alkynes.
Chem. Sci., 2022,13, 7604-7609
https://doi.org/10.1039/D2SC02306G
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Photoinduced inverse Sonogashira coupling reaction
A transition-metal and photocatalyst-free, photoinduced inverse Sonogashira coupling reaction was developed. Under visible-light irradiation, the excited state iodoalkyne acted as an “alkynyl radical synthetic equivalent”.
Chem. Sci., 2022,13, 7475-7481
https://doi.org/10.1039/D2SC01933G
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Practical asymmetric amine nucleophilic approach for the modular construction of protected α-quaternary amino acids
We report the first amine nucleophilic approach for the modular construction of enantioenriched protected α-quaternary amino acids.
Chem. Sci., 2022,13, 6806-6812
https://doi.org/10.1039/D2SC02318K
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Direct visible-light-induced synthesis of P-stereogenic phosphine oxides under air conditions
We describe a simple and efficient visible-light-induced C–P bond forming reaction for the synthesis of P-chiral heteroaryl phosphine oxides in moderate to high yields with excellent ee values (97–99% ee).
Chem. Sci., 2022,13, 6519-6524
https://doi.org/10.1039/D2SC00036A
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Why heterogeneous single-atom catalysts preferentially produce CO in the electrochemical CO2 reduction reaction
This report discloses a nontrivial role of the CO2 adsorption mode in governing the CO/formate selectivity of single-atom catalysts towards two-electron CO2 reduction.
Chem. Sci., 2022,13, 6366-6372
https://doi.org/10.1039/D2SC01593E
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A bioorthogonal chemical reporter for the detection and identification of protein lactylation
YnLac is an alkynyl-functionalized L-lactate analogue that is metabolically incorporated into L-lactylated proteins in live cells, enabling the fluorescence detection and proteomic identification of novel L-lactylated proteins.
Chem. Sci., 2022,13, 6019-6027
https://doi.org/10.1039/D2SC00918H
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Highly efficient and stable deep-blue OLEDs based on narrowband emitters featuring an orthogonal spiro-configured indolo[3,2,1-de]acridine structure
An advanced concept of using ultra-narrowband emitters to improve the stability of deep-blue OLEDs is proposed and two proof-of-concept deep-blue emitters are developed.
Chem. Sci., 2022,13, 5622-5630
https://doi.org/10.1039/D2SC01543A
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A general electron donor–acceptor complex for photoactivation of arenes via thianthrenation
General photoactivation of EDA complexes between arylsulfonium salts and 1,4-diazabicyclo[2.2.2]octane was discovered. This practical mode enables the generation of aryl radicals for C–H functionalization of arenes.
Chem. Sci., 2022,13, 5659-5666
https://doi.org/10.1039/D2SC01241C
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Profiling single-molecule reaction kinetics under nanopore confinement
A four-state kinetics model is proposed to reveal the kinetics of a single-molecule reaction under nanopore confinement.
Chem. Sci., 2022,13, 4109-4114
https://doi.org/10.1039/D1SC06837G
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High-performance all-solid-state electrolyte for sodium batteries enabled by the interaction between the anion in salt and Na3SbS4
A high-performance all-solid-state PEO/NaTFSI/Na3SbS4 electrolyte for sodium batteries is realized owing to the electrostatic interaction between TFSI− in the salt and Na3SbS4, which immobilizes TFSI− anions and promotes the dissociation of NaTFSI.
Chem. Sci., 2022,13, 3416-3423
https://doi.org/10.1039/D1SC06745A
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AIE-active luminogens as highly efficient free-radical ROS photogenerator for image-guided photodynamic therapy
The AIE-based type I photosensitizer TCM-CPS exhibits high free radical generation and light-up fluorescence characteristics, giving it great potential in the image-guided PDT modality for the treatment of cancer and bacterial infections.
Chem. Sci., 2022,13, 3599-3608
https://doi.org/10.1039/D2SC00067A
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Narrowband blue emission with insensitivity to the doping concentration from an oxygen-bridged triarylboron-based TADF emitter: nondoped OLEDs with a high external quantum efficiency up to 21.4%
A donor–acceptor TADF emitter showed narrowband high-efficiency blue emission by fine molecular modulation. The corresponding OLEDs exhibited a maximum EQE of 21.4% and a small FWHM of 45 nm, representing the most efficient nondoped blue TADF-OLEDs.
Chem. Sci., 2022,13, 3402-3408
https://doi.org/10.1039/D2SC00329E