| Synthesis and Structural Characterizations of the Heteronuclear Cubane－like Cluster W_2Ag_2S_4（tdt）_2（PPh_3）_2·CH_2Cl_2 |
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| 作者姓名： | YU Rong-Min LU Shao-Fang HUANG Xiao-Ying HUANG Jian-Quan |
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| 作者单位： | State Key Laboratory of Structural Chemistry and Fujian Institute of Research on the Structure of Matter，Chinese Academy of Sciences，Fuzhou，China，350002 |
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| 摘 要： | ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒａｌＣｈａｒａｃｔｅｒｉｚａｔｉｏｎｓｏｆｔｈｅＨｅｔｅｒｏｎｕｃｌｅａｒＣｕｂａｎｅ－ｌｉｋｅＣｌｕｓｔｅｒＷ_２Ａｇ_２Ｓ_４（ｔｄｔ）_２（ＰＰｈ_３）_２·ＣＨ_２Ｃｌ_２ＹＵＲｏｎｇ－Ｍｉｎ；ＬＵＳｈａｏ－Ｆ...
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Synthesis and Structural Characterizations of the Heteronuclear Cubane-like Cluster W_2Ag_2S_4(tdt)_2(PPh_3)_2·CH_2Cl_2 |
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| YU Rong-Min,LU Shao-Fang,HUANG Xiao-Ying,HUANG Jian-Quan.Synthesis and Structural Characterizations of the Heteronuclear Cubane-like Cluster W_2Ag_2S_4(tdt)_2(PPh_3)_2·CH_2Cl_2[J].Chinese Journal of Structural Chemistry,1996(5). |
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| Authors: | YU Rong-Min LU Shao-Fang HUANG Xiao-Ying HUANG Jian-Quan |
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| Abstract: | A new heterometallic cluster W2Ag2S4(tdt)2(PPh3)2·CH2Cl2(H2tdt=H2CH3C6H3S2)(Ⅱ) has been prepared from the reaction of a well-defined molecular building block W2S4(tdt)22-(I) with Ag complex. The compound has been characterized by X-ray diffraction study, IR., UV-Vis Spectroscopy and cyclic voltammetry.Crystallographic data for the compound are: space group P21/n,a=17.234(4), b=17.622(4), c=19. 094(4) A,β= 99. 22(2)°,V=5704(2) A3, Z=4,final R=0. 042 and Rw=0. 049 for 5983 independent reflections with I≥3σ(I) The structure analysis reveals that the cluster contains a cubane-like core W2Ag2S4]4+ . The coordination geometry of each tungsten atom is a square pyramid just as that in the building block. Two types of metal-metal bonds of W-W bond and W-Ag bond exist in the core. The distance between two Ag atoms is out of the range of bonding. |
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| Keywords: | W-Ag-S cubane-like cluster rational synthesis structure spectrum |
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