Au25 clusters as electron-transfer catalysts induced the intramolecular cascade reaction of 2-nitrobenzonitrile.

Au25 clusters as electron-transfer catalysts induced the intramolecular cascade reaction of 2-nitrobenzonitrile.
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Au-25团簇作为电子转移催化剂诱导2-硝基苯甲腈的分子内级联反应

DOI:
10.1038/srep03214
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发表时间:
2013-11-14
期刊:
影响因子:
4.6
通讯作者:
Li, Yadong
Li, Yadong
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Chong, Hanbao;Li, Peng;Wang, Shuxin;Fu, Fangyu;Xiang, Ji;Zhu, Manzhou;Li, Yadong

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原子级精密金属纳米团簇催化剂的设计对于在原子水平上理解催化反应的本质具有重要意义。本文首次利用Au25z纳米sluslas作为电子转移催化剂,在环境条件下诱导了分子内级联反应,并获得了高转化率(87%)和选择性(96%)。电子自旋共振谱确实证实了连续的电子转移过程和N自由基的形成。紫外-可见吸收光谱也证实了催化循环后Au25z是完整的。我们的研究为Au25z催化广泛的有机反应开辟了广阔的机会。
Design of atomically precise metal nanocluster catalysts is of great importance in understanding the essence of the catalytic reactions at the atomic level. Here, for the first time, Au25z nanoslusters were employed as electron transfer catalysts to induce an intramolecular cascade reaction at ambient conditions and gave rise to high conversion (87%) and selectivity (96%). Electron spin-resonance spectra indeed confirmed the consecutive electron transfer process and the formation of N radical. UV-vis absorption spectra also verified Au25z was intact after the catalytic circle. Our research may open up wide opportunities for extensive organic reactions catalyzed by Au25z.
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