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化学学报
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化学学报 ›› 1988, Vol. 46 ›› Issue (11): 1075-1080.    下一篇

研究论文

MoFe3S4单立方烷原子簇研究 IV:新型的双跨桥六配体单立方烷簇合物MoFe3S4(μ-Me2NCS2)2(Me2NCS2)4.2CH3CN的合成与结构

刘秋田;黄梁仁;杨瑜;卢嘉锡   

  1. 中国科学院福建物质结构研究所
  • 发布日期:1988-11-15

Investigation of single MoFe3S4 cubane-like cluster compounds IV: Synthesis and structure of novel doubly bridged single cubane-like cluster compound MoFe3S4(μ-Me2NCS2)4.2CH3CN

LIU QIUTIAN;HUANG LIANGREN;YANG YU;LU JIAXI   

  • Published:1988-11-15

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在二甲胺基二硫代甲酸钠、氯化亚铁及四硫代钼酸铵的自兜反应体系中, 以分步结晶法分离出MeFe3S4(Me2NCS2)5.CH2Cl2及MoFe3S1(Me2NCS2)6.2CH3CN等单立方烷簇合物, 并测定了后者的结构. 它的分子含两个Me2NCS2并具有最高核心氧化态[MoFe3S4]^6^+. 本文报道该化合物的结构特点, 指出在自兜反应体系中, 可能存在几种不同氧化态的单立方烷原子簇化合物.

关键词: 分子结构, 固氮酶, 铁化合物, 簇状化合物, 立方烷, 桥环化合物, 钼化合物, 硫化合物, 乙腈

MoFe3S4(Me2NCS2)5.CH2Cl2 and MoFe3S4(Me2NCS2)6.2CH2Cl2 (I), which were separated by fractional crystallization I is triclinic, space group P1, a 12.060(3), b 12.064(4), c 19.595(5), a 83.10(2), b 84.93(2), g 66.59(2)? Z = 2, for 5183 reflections R = 0.069. I is a novel cluster [MoFe3S4]6+ and contains 2 Me2NCS2 bridges. The structural features are reported and the observation that several single cubane-like cluster compounds containing various oxidation states can coexist in an assembly system is discussed.

Key words: MOLECULAR STRUCTURE, NITROGENASE, IRON COMPOUNDS, CLUSTER COMPOUND, CUBANE, BRIDGE COMPOUNDS, MOLYBDENUM COMPOUNDS, SULFUR COMPOUNDS, ACETONITRILE

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