[Ag21{S2P(OiPr)2}12]+: An Eight-Electron Superatom
[Ag21{S2P(OiPr)2}12]+: An Eight-Electron Superatom
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DOI：
10.1002/anie.201410332
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发表时间：
2015-03-16
影响因子：
16.6
通讯作者：
Liu, C. W.
中科院分区：
文献类型：
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作者：
Dhayal, Rajendra S.;Liao, Jian-Hong;Liu, C. W.
合成了一种新型的离散型[Ag-21{S2P(OIPR)(2)}(12)](PF6)纳米簇合物，并用单晶X射线衍射法、核磁共振谱(H-1，P-31)、电喷雾质谱(ESI-MS)和其他分析技术(XPS，EDS，UV/Vis)对其进行了表征。Ag-21骨架具有史无前例的以银为中心的二十面体，该二十面体由另外八个金属原子覆盖。整个骨架由十二个二硫代磷酸配体保护。DFT计算证实，根据球形凝胶模型，单阳离子纳米团簇的稳定性可以用一个具有1S(2)1P(6)构型的8电子超原子来描述。
A novel discrete [Ag-21{S2P(OiPr)(2)}(12)](PF6) nanocluster has been synthesized and characterized by single-crystal X-ray diffraction and also NMR spectroscopy (H-1, P-31), ESI mass spectrometry, and other analytic techniques (XPS, EDS, UV/Vis spectroscopy). The Ag-21 skeleton has an unprecedented silver-centered icosahedron that is capped by eight additional metal atoms. The whole framework is protected by twelve dithiophosphate ligands. According to the spherical Jellium model, the stability of monocationic nanocluster can be described by an 8-electron superatom with 1S(2) 1P(6) configuration, as confirmed by DFT calculations.