Themed collection In celebration of Chinese New Year

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.

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.

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.

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.

A modular synthetic approach based on cyclocondensation reaction is introduced to produce nine nanohoops with tunable donor–acceptor structures.

The development of RNA imaging strategies in live cells is essential to improve our understanding of their role in various cellular functions.

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.

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.

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.

Nickel-catalyzed asymmetric α-heteroarylation of ketones with fluorinated heteroarenes is reported via C–F bond activation.

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.

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.

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%.

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.

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.

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.

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.

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.

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.

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”.

We report the first amine nucleophilic approach for the modular construction of enantioenriched protected α-quaternary amino acids.

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).

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.

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.

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.

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.

A four-state kinetics model is proposed to reveal the kinetics of a single-molecule reaction under nanopore confinement.

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.

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.

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.