Mo4(μ3-S)3(μ3-O)[μ-S2P(OEt)2]3[S2P(OEt)2]3的晶体结构 |
CRYSTAL STRUCTURE OF Mo4(μ3-S)3(μ3-O)[μ-S2P(OEt)2]3[S2P(OEt)2]3 |
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摘要: 用x射线衍射法测定了四核钼原子簇化合物Mo4(μ3-S)3(μ3-O)[μ-S2P(OEt)2]3[S2P(OEt)3]的晶体结构。晶体属三种晶系。晶胞参数为a=13.387(3),b=13.997(4),c=16.281(3)Å,α=72.84(2)°,β=87.92(2)°,γ=84.87(2)°;z=2;空间群P1。由直接法(MULTAN—80)求得原子坐标。所有非氢原子坐标和热参数经全矩阵最小二乘方精修,最后偏离因子R=0.092。研究表明,在这一中性配位分子中,簇胳中心为[Mo4S3O]类立方烷构型,加上桥式和端式两种[S2P(OEt)2]-配体,每个Mo原子周期都满足了畸变六配位八面体的要求。本文还讨论了两种[S2P(OEt)2]-配体在结构参数上的差别。 |
关键词: 四核钼簇合物 晶体结构 |
基金项目: |
Abstract: The crystal structure of the tetranucleus Mo cluster compound Mo4(μ3-S)3(μ3-O)[μ-S2P(OEt)2]3[S2P(OEt)2]3,has been determined by X-ray diffraction method. The crystal belongs to triclinic with a=13.387(3),b=13.997(4),c=16.281(3)Å,α =72.84(2)°,β=87.92(2)°,γ=84.87(2)°,z=2 space group P 1 .The atomic coordinates were solved by direct method (MULTAN -80) and refined by full-matrix least squares procedure to final discrepancy factor R=0.092. The results of the investigation reveal that the cluster ompound crystalized in a neutral complex-type molecule. The central core of the cluster compound is ( Mo4S3O) ,a cubic like configuration. Each Mo atom is coordinated in a distorted octahedral form. The differences of structural parameters between bridge and terminal [S2P(OEt)2]- ligands were discussed. |
Keywords: tetranucleus Mo cluster compound crystal structure |
投稿时间:1985-02-04 |
摘要点击次数: 2362 |
全文下载次数: 1962 |
吴鼎铭,黄金陵,黄建全.Mo4(μ3-S)3(μ3-O)[μ-S2P(OEt)2]3[S2P(OEt)2]3的晶体结构[J].无机化学学报,1985,1(1):32-39. |
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