Author: Tongde Tan

0000000001322906

AUTHOR

Tongde Tan

Highly Robust but Surface-Active : An N-Heterocyclic Carbene-Stabilized Au25 Nanocluster

Surface organic ligands play a critical role in stabilizing atomically precise metal nanoclusters in solutions. However, it is still challenging to prepare highly robust ligated metal nanoclusters that are surface-active for liquid-phase catalysis without any pre-treatment. Now, an N-heterocyclic carbene-stabilized Au25 nanocluster with high thermal and air stabilities is presented as a homogenous catalyst for cycloisomerization of alkynyl amines to indoles. The nanocluster, characterized as [Au25(iPr2-bimy)10Br7]2+ (iPr2-bimy=1,3-diisopropylbenzimidazolin-2-ylidene) (1), was synthesized by direct reduction of AuSMe2Cl and iPr2-bimyAuBr with NaBH4 in one pot. X-ray crystallization analysis …

research product

CCDC 1916156: Experimental Crystal Structure Determination

Related Article: Hui Shen, Guocheng Deng, Sami Kaappa, Tongde Tan, Ying-Zi Han, Sami Malola, Shui-Chao Lin, Boon K. Teo, Hannu Häkkinen, Nanfeng Zheng|2019|Angew.Chem.,Int.Ed.|58|17731|doi:10.1002/anie.201908983

research product

PEPhysical Sciences and Engineering
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