Photo-controllable biochemistry: Exploiting the photocages in phototherapeutic window

Photocages have been acknowledged as one of the most effective carriers of pharmaceuticals and bioactive molecules, owing to their non-invasiveness and spatiotemporal controllability. They are ideal tools in the studies of photo-controllable drug delivery systems and optogenetics. In this review, we have summarized the current state-of-the-art of photocages...

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A crystalline and stable microporous framework based on the dative B←N bonds

For the first time, a crystalline and reproducible B←N organic framework with permanent porosity has been reported, exhibiting high chemical stability and selective separation of acetylene from the C2H2/CO2 mixture.

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A novel crystalline template for the structural determination of flexible chain compounds of nanoscale length

A novel crystalline template was synthesized to realize a 3D structure facilitating π-interactions. This motif allows the material to accommodate guest molecules for structural determination by single-crystal X-ray diffraction without having single crystals. Specifically, this template shows an excellent performance in determining the structure of fatty-acid-based...

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Multicomponent synthesis of α-chloro alkylboronic esters via visible-light-mediated dual catalysis

α-Chloro alkylboronic (α-CAB) esters are a class of stable bifunctional molecules wherein the intrinsic differences of a carbon–chlorine and carbon–boron bond can be used to unlock distinct reactivity through carbon-electrophile, carbon-nucleophile, and carbon-centered radical intermediates. Despite their apparent utility, complex variants are not trivial...

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Ligand-enabled stereodivergence in nickel-catalyzed regioselective hydroboration of internal allenes

Stereodivergent synthesis of trisubstituted Z- and E-alkenylboronates has been developed through nickel-catalyzed regio- and stereoselective hydroboration of internal allenes. This protocol features good functional-group compatibility and broad substrate scope. In addition, several bisphosphine-ligated nickel-allene and nickel-olefin complexes have...

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Tuning the spin state of Fe single atoms by Pd nanoclusters enables robust oxygen reduction with dissociative pathway

Fe single-atom catalysts are compelling alternatives to Pt-based catalysts for oxygen reduction reaction (ORR). However, their practical applications are hindered by the sluggish kinetic process of ORR. Herein, ultralow-content Pd nanoclusters are integrated to regulate the spin state of Fe single atoms, making the ORR proceeds via a preferable dissociative...

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Metallurgical alloy approach to two-dimensional supramolecular materials

Metallic alloying is one of the oldest approaches for tuning the properties of materials such as color, hardness, melting point, and crystal habits. Here, we demonstrate an analogous approach in the aqueous dispersion of chromophore amphiphile supramolecular polymers in which three amphiphilic perylene monoimide-based molecules exhibit a rich phase...

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Single-molecule fluorescence imaging for probing nanocatalytic process

This perspective provides a brief summary of recent applications of single-molecule fluorescent microscopy in nanocatalysis and highlights the opportunities and challenges in visualizing catalytic reactions under working conditions at single-molecule/particle level. This could inspire new ideas for researchers working in this field and broaden potential...

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Three-component enantioselective alkenylation of organophosphonates via nickel metallaphotoredox catalysis

Herein, we report a metallaphotoredox-catalyzed asymmetric three-component method to access a diverse array of enantio-enriched α-alkenyl phosphonates from readily available vinyl phosphonates, alkenyl halides, and alkyl trifluoroborates under mild conditions. This operationally simple and redox-neutral protocol exhibits a broad substrate scope and...

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2D conjugated metal-organic framework as a proton-electron dual conductor

Proton-electron dual conductors with a well-defined structure allow for efficient charge transport while promoting a fundamental understanding of dual conduction. Herein, we present Zn-HHTP-H2O, a proton-electron dual-conducting MOF, which serves as a functionalizable platform. We found that substituting H2O with urea leaves electrical conductivity...

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