| [(CH_3)_4N]_2Na[Mo_2O(S_2)_3S_5]·H_2O的合成和晶体结构 |
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| 引用本文： | 卢绍芳,倪步高,吴新涛,何美云,黄金陵.[(CH_3)_4N]_2Na[Mo_2O(S_2)_3S_5]·H_2O的合成和晶体结构[J].结构化学,1985(4). |
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| 作者姓名： | 卢绍芳 倪步高 吴新涛 何美云 黄金陵 |
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| 作者单位： | 中国科学院福建物质结构研究所
(卢绍芳，倪步高，吴新涛，何美云)，中国科学院福建物质结构研究所(黄金陵) |
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| 摘 要： | 标题晶体属斜方晶系,空间群Pbn2_1,a=9.086(2),b=13.439(3),c=22.858(11),V=2791,Z=4,Dc=1.927g/cm~3。在CAD—4衍射仪上收集强度数据,采用直接法和Fourier技术解出结构,并用全矩降最小二乘法修正。对于1180个独立衍射最终偏离因子0.067。结构中的阴离子与其同系物(CH_3)_4-N]_2K(Mo_2O(S_2)_3(NO)_2]·H_2O中的阴离子配位情况相似。只是结构中的Mo—S与Mo—O键长有差异。这种差异在两者的红外光谱上有着相应的表现。
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SYNTHESIS AND CRYSTAL STRUCTURE OF[(CH3)4N]2Na[Mo2O(S2)3S5(NO)2]H2O |
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| Abstract: | The crystal of the title compound is orthorhombic, belonging to the space group Pbn21 with the unit cell dimensions: a=9.086(2), b=13.439(3), c=22.858(11)A, V=2791A3, 2=4, D(?)=1.927g cm-3. The strutcture is solved by direct method and Fourier techniques, and refined by full matrix least-squares to a final R=0,067 for 1180 reflections. In this structure, the coordination and configuration of the complex anion Mo20(S2)3S5(NO)2]3- is similar to thoses of (CH3)4N]2KMo20(S2)35S5-(NO)2]·H2O with.their bond lengths somewhat different. It seems that there exits the influence of neighbouring cations on the bond lengths of the complex anion. The same result has been observed by the comparison of IR spectra for both complexes. |
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