Stable and Recyclable Copper Nanoclusters with Exposed Active Sites for Broad‐Scope Protosilylation in Open Air

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Окт. 25, 2024

Abstract Despite recent advances in cluster‐based catalysis for organic synthesis, the substrate scope of reactions catalyzed by metal nanoclusters is typically not superior to previously established catalytic systems. Herein, we develop new atomically precise copper protosilylation, with expanding alkenes and simple enynes that were suitable prior synthetic methodologies traditional complexes. The involvement a second center kernel during migratory insertion step thought be responsible expanded scope. In addition, reaction highly compatible water can carried out open air rather than under inert gas protection. Mechanistic studies suggest cluster‐catalyzed protosilylation proceeds absence silyl radicals. current findings demonstrate potential using practical sustainable chemical synthesis.

Язык: Английский

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Heteroatom number-dependent cluster frameworks in structurally comparable Pd–Au nanoclusters

Nanoscale, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This work achieved the manipulation of Pd dopant numbers in cluster framework based on two structurally comparable x Au 12 ( = 1, 2) nanoclusters.

Язык: Английский

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Lighting up metal nanoclusters by the H2O-dictated electron relaxation dynamics

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Март 7, 2025

Abstract The modulation of traps has found attractive attention to optimize the performance luminescent materials, while understanding trap-involved photoluminescence management metal nanoclusters greatly lags behind, thus extensively impeding their increasing acceptance as promising chromophores. Here, we report an efficient passivation structural oxygen vacancies in AuAg by leveraging H 2 O molecules, achieving a sensitive color tuning from 536 480 nm and remarkably boosting quantum yield 5.3% (trap-state emission) 91.6% (native-state emission). In detail, favored electron transfer relevant contributes weak trap-state emission, which is capable being restrained molecules taking Au-O Ag-O bonds. This scenario allows dominated native-state emission with faster radiative rate. parallel, can rigidify landscape on hydrogen bonding, enabling suppression electron-optical phonon coupling decelerated non-radiative presented study deepens tailoring properties manipulating surface trap chemistry relaxation dynamics, would shed new light customizable performance.

Язык: Английский

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Multifunctional copper–glutathione clusters with superior p-nitrophenol degradation and horseradish peroxidase-like activity

RSC Advances, Год журнала: 2025, Номер 15(12), С. 8889 - 8900

Опубликована: Янв. 1, 2025

Herein, an ultrasmall copper–glutathione nanocluster was prepared via one-pot synthesis and acid etching at pH = 2. The formed clusters show superior catalytic efficiency for p -nitrophenol reduction HRP-like activities.

Язык: Английский

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[Cu58(SeC6H5)24(Dppe)6Se16]2+ Assembled from Tetrahedra and Octahedron: Synthesis, Characterization, Structure and Catalytic properties

Chemical Communications, Год журнала: 2024, Номер 60(71), С. 9614 - 9617

Опубликована: Янв. 1, 2024

Herein, we successfully synthesized a copper nanocluster, [Cu

Язык: Английский

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Atomically precise rhodium–indium carbonyl nanoclusters: synthesis, characterization, crystal structure and electron-sponge features

Nanoscale, Год журнала: 2024, Номер 16(38), С. 17852 - 17867

Опубликована: Янв. 1, 2024

In this paper we present the investigation of reactivity [Rh7(CO)16]3- with InCl3, aim expanding more general study that allowed us to obtain, among other species, icosahedral [Rh12E(CO)27]n- (n = 4 when E Ge or Sn; n 3 Sb Bi) family clusters. Indeed, resulted in isolation and characterization analogous In-centred [Rh12In(CO)28]3- nanocluster (1), which is isoelectronic isostructural congeners. During course reaction two new namely octahedral [Rh6(CO)15InCl3]2- (2) dimeric [{Rh6(CO)15InCl2}2]2- (3) have also been identified. The between InCl3 proved be poorly selective; nevertheless, by fine tuning some parameters it was possible drive towards one product other. Alternatively, can selectively prepared reacting either [Rh5(CO)15]- or, less efficiently, [Rh6(CO)15]2- InCl3. As for only isolated carrying out under inert atmosphere, as opposed CO. All clusters were characterized IR spectroscopy ESI-MS, their molecular structures fully established single-crystal X-ray diffraction studies. species analysed EDS via SEM, further investigated through situ infrared spectroelectrochemistry CV experiments check its multivalence nature. reversibly undergo monoelectronic oxidation bi-electronic reduction processes, behaving like an electron sponge and, thus, giving rise [Rh12In(CO)28]n- derivatives 1, 2 5). These results parallel findings series. geometry variations metal framework associated changes cluster negative charge means DFT calculations.

Язык: Английский

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Ln^III/Cu^I Bimetallic Nanoclusters with Enhanced NIR-II Luminescence

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(42), С. 28618 - 28623

Опубликована: Окт. 14, 2024

Coinage-metal clusters with excellent luminescence properties have attracted considerable interest due to their intriguing structures and potential applications. However, achieving strong near-infrared (NIR) in these is highly challenging. Here, we successfully synthesized the first Ln

Язык: Английский

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Polymorphism in 5-methylsalicylic acid: Insights into relative thermal behavior, luminescent properties, crystal structure, and Hirshfeld surface analysis

Journal of Molecular Structure, Год журнала: 2024, Номер 1319, С. 139397 - 139397

Опубликована: Июль 23, 2024

Язык: Английский

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Ag⁺-Induced Assembly of Pt Clusters for Photocatalytic Hydrogen Production

Inorganic Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Сен. 11, 2024

Cluster-assembled nanowires provide a unique strategy for the preparation of high-performance nanostructures. However, existing preparations are limited by complex processes and harsh reaction conditions. Here, Ag

Язык: Английский

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Size disproportionation among nanocluster transformations

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Controllable transformation is a prerequisite to the in-depth understanding of structure evolution mechanisms and structure-property correlations at atomic level. Most cases direct directional nanocluster sizes,

Язык: Английский

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