Copper nanoclusters: emerging photoredox catalysts for organic bond formations DOI Creative Commons
Arunachalam Sagadevan, Kathiravan Murugesan, Osman M. Bakr

и другие.

Chemical Communications, Год журнала: 2024, Номер 60(94), С. 13858 - 13866

Опубликована: Янв. 1, 2024

Advancements in fine chemical synthesis and drug discovery continuously demand the development of new more efficient catalytic systems. In this regard, numerous transition metal-based catalysts have been developed successfully applied industrial processes. However, need for innovative catalyst systems to further enhance efficiency transformations applications persists. Metal nanoclusters (NCs) represent a distinct class ultra-small nanoparticles (<3 nm) characterized by precise number metal atoms coordinated with defined ligands. This structure confers abundant unsaturated active sites unique electronic optical properties, setting them apart from conventional or bulk metals. The well-defined monodisperse nature NCs make particularly attractive applications. Among these, copper-based emerged as versatile sustainable challenging organic bond-forming reactions. Their including natural abundance, accessible oxidation states, diverse ligand architectures, strong photophysical characteristics, contribute their growing prominence field. review, we discuss photocatalytic activities Cu-based nanoclusters, focusing on cross-coupling reactions (C-C C-N), click reactions, multicomponent couplings,

Язык: Английский

Atomic-level insights into the synergistic effect between ligands on electrochemical CO2 reduction: based on Au7Ag8 series nanoclusters DOI

Along Ma,

Yuansheng Li,

Yang Zuo

и другие.

Rare Metals, Год журнала: 2025, Номер unknown

Опубликована: Март 21, 2025

Язык: Английский

Процитировано

2
Polymorphism of [Cu15(PhCH2CH2S)13(PPh3)6][BF4]2 and Double-Helical Assembly of [Cu18H(PhCH2CH2S)14(PPh3)6Cl3]: Origin of Two Chiral Nanoclusters with Triple-Helical Core from Intermediates DOI Creative Commons
Abhijit Nag,

Abdul Mannan Butt,

Moon Young Yang

и другие.

ACS Materials Letters, Год журнала: 2025, Номер 7(2), С. 442 - 449

Опубликована: Янв. 2, 2025

Here, we report the solvent-induced polymorphism in [Cu15(PET)13(TPP)6][BF4]2(Cu15) (TPP = triphenylphosphine, PET 2-phenylethanthiol), and double-helical assembly of [Cu18H(PET)14(TPP)6Cl3] (Cu18) nanocluster (NC) from reaction intermediates. Both copper NCs have an intrinsically chiral triple-stranded helicate metal core, unlike traditional with a polyhedral-based kernel. The structure Cu15 resembles enantiomeric pair unit cell. Moreover, Cu18 has three-layered 3D chirality sandwich constructed sulfur-bridged aligned top-middle-down configuration. Furthermore, NC self-hierarchically assembles into complex double-stranded helix secondary sustained by noncovalent interactions. Electrospray ionization mass spectrometry (ESI-MS), density functional theory (DFT), X-ray photoelectron spectroscopy (XPS) were utilized to validate single-crystal diffraction (SCXRD) data. Overall, this study provides interesting example polymorphism, chirality, hierarchical NCs, allowing for extensive understanding complicated structures at atomic level.

Язык: Английский

Процитировано

1
High quantum yield copper nanoclusters integrated with nitrogen-doped carbon dots for off-on ratiometric fluorescence sensing of S2- and Zn2+ DOI
Jiang Xue Dong, Kai Xiao,

Xiao Li Wu

и другие.

Talanta, Год журнала: 2025, Номер 286, С. 127565 - 127565

Опубликована: Янв. 10, 2025

Язык: Английский

Процитировано

0
Diphosphine-induced morphological modification in Au nanoclusters and its implications for catalytic activity regulation DOI
Jialing Li, Zhiwei Wang, Jian‐Sheng Ye

и другие.

Chemical Communications, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Diphosphine-triggered morphological change from box-like Au 44 to sharp-shaped 40 nanoclusters is achieved, realizing the enhancement of its photocatalytic activity in degradation rhodamine B.

Язык: Английский

Процитировано

0
Cysteine-assisted synthesis of copper nanoclusters for construction of FRET-based ratiometric sensor for visual detection of alkaline phosphatase DOI

Qinhui Dong,

Wei Song, Shusheng Zhang

и другие.

Talanta, Год журнала: 2025, Номер 291, С. 127910 - 127910

Опубликована: Март 7, 2025

Язык: Английский

Процитировано

0
Maneuvering the Electronic State and Active Site of Assembled-Gold Nanoclusters through Polyoxometalate Implantation for Heterogeneous Green-Light Photocatalysis DOI

Satya Ranjan Sahoo,

Tarun Kumar Dinda, Sumit Saha

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

Gold nanoclusters (AuNCs) exhibit unique molecule-like optical and electronic properties, making them promising candidates for photocatalysis. However, their application as primary photocatalysts in heterogeneous systems is limited by rapid electron recombination, small size, high solubility. To overcome these limitations, we developed an approach combining AuNCs assemblies with trap centers to enhance charge separation transfer. Using a depletion-driven assembly method, Keggin-type polyoxometalates (POMs), Na10SiW9O34 (SiW9), were uniformly embedded within spherical of glutathione-protected AuNCs, forming gold superclusters (AuSCs). The resulting AuSCs@SiW9 exhibited complete photoluminescence quenching, enhanced metallicity, stabilized photogenerated electrons via SiW9, enabling use photocatalysts. efficiently catalyzed the functionalization terminal aryl alkyne N-bromosuccinimide (NBS), achieving tribromoketones yield 94%, significantly outperforming AuSCs lower or higher metallicity (38 65%, respectively). Mechanistic studies revealed that improved promotes transfer complex formation NBS, while SiW9 stabilizes electrons, enhancing density under light irradiation. strong visible-light absorption, photostability, solvent dispersibility, recyclability up five cycles scalability broader applications. This strategy positions viable photocatalyst, expanding its potential photocatalysis toward synthesizing molecules.

Язык: Английский

Процитировано

0
Breaking the Brønsted–Evans–Polanyi relationship in N2 adsorption driven by potential-dependent repositioning of frontier orbitals: a sweet marriage of machine learning-assisted screening and the electric double-layer effect DOI
Yali Lu, Ning Guo, Qiang Zhang

и другие.

Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

We conducted an upgrade prediction for NRR electrocatalysts on g-C 16 N 5 featuring the local coordinationof TM–N 4 , with Mo@g-C standing out. Using constant-potential method and implicit solvent model, we find electric double-layer capacitance is key in modulating kinetic barrier.

Язык: Английский

Процитировано

0
Metal-free Decarboxylative Oxygenation of α-Amino Acids to Amide Compounds via Photoredox Catalysis DOI
Rui Zhu,

Yaxin Wang,

Minshu Cui

и другие.

Applied Catalysis A General, Год журнала: 2024, Номер unknown, С. 120084 - 120084

Опубликована: Дек. 1, 2024

Язык: Английский

Процитировано

1
Structural design and evolution of one-dimensional Cu hydrogen-bonded organic framework for catalyzing the rapid decomposition of ammonium perchlorate DOI

Xiaolin Tang,

Peng Zhou, Yuming Zhou

и другие.

Journal of Hazardous Materials, Год журнала: 2024, Номер 486, С. 136961 - 136961

Опубликована: Дек. 25, 2024

Язык: Английский

Процитировано

1
Copper nanoclusters: emerging photoredox catalysts for organic bond formations DOI Creative Commons
Arunachalam Sagadevan, Kathiravan Murugesan, Osman M. Bakr

и другие.

Chemical Communications, Год журнала: 2024, Номер 60(94), С. 13858 - 13866

Опубликована: Янв. 1, 2024

Advancements in fine chemical synthesis and drug discovery continuously demand the development of new more efficient catalytic systems. In this regard, numerous transition metal-based catalysts have been developed successfully applied industrial processes. However, need for innovative catalyst systems to further enhance efficiency transformations applications persists. Metal nanoclusters (NCs) represent a distinct class ultra-small nanoparticles (<3 nm) characterized by precise number metal atoms coordinated with defined ligands. This structure confers abundant unsaturated active sites unique electronic optical properties, setting them apart from conventional or bulk metals. The well-defined monodisperse nature NCs make particularly attractive applications. Among these, copper-based emerged as versatile sustainable challenging organic bond-forming reactions. Their including natural abundance, accessible oxidation states, diverse ligand architectures, strong photophysical characteristics, contribute their growing prominence field. review, we discuss photocatalytic activities Cu-based nanoclusters, focusing on cross-coupling reactions (C-C C-N), click reactions, multicomponent couplings,

Язык: Английский

Процитировано

0