Acta Chimica Sinica ›› 1987, Vol. 45 ›› Issue (9): 842-847. Previous Articles     Next Articles

Original Articles

钼簇合物反应性能的研究: {Mo3S4[S2P(OEt)2]4H2O}的加硫反应以及产物{Mo3(μ3-S)(μ-S2)3[S2P(OEt2]3I}的晶体结构

卢绍芳;黄建全;林玉辉;黄金陵   

  1. 中国科学院福建物质结构研究所
  • 发布日期:1987-09-15

Studies on the reactivities of molybdenum clusters: The sulfur-addition reaction of {Mo3S4[S2P(OEt02]4.H2O} and the crystal structure of the product {Mo3(\m\3-S)(\m\-S2)3[S2P(OEt)2]3.I}

LU SHAOFANG;HUANG JIANQUAN;LIN YUHUI;HUANG JINLING   

  • Published:1987-09-15

The S-deficient compound {Mo3S4[S2P(OEt)2]3.H2O} was converted through the S addition reaction into S-rich compound {Mo3S7[S2P(OEt)2]3.I}(CH3C6H5) (I). I forms crystals in space group P1 with Z = 2, a 10.350(1), b 13.931(4), c = 16.396(3) ? a 103.69(2), b 86.62(1), g 11.99(2)? d.(calcd.) = 1.817 g cm-3, R = 0.042. The formulation of I is of the general type {Mo3(m3-Z)(m-S2)3[S2P(OEt)2]3.X} (Z = O, S; X = Cl, I). There exists an essentially equilateral triangle of Mo atoms with the Mo-Mo bond lengths being 2.721(1), 2.724(1), 2.725(1) ? resp. Moreover, each Mo atom is coordinated with 7 S atoms forming a distorted pentagonal bipyramid. On the top of 3 S atoms out of Mo plane there is an iodine atom connecting these S atoms with an average distance of 3.169 ? which is obviously shorter than the corresponding Van der Waals contact (~4.00 ?, showing a bonding interaction. The configuration of trinuclear Mo cluster is therefore stable.

Key words: CRYSTAL STRUCTURE DETERMINATION, X-RAY DIFFRACTION ANALYSIS, MOLYBDENUM COMPLEX, THIOPHOSPHATE, CLUSTER COMPOUND, PHOSPHORIC ACID ESTER, SULFIDE COMPLEX, CONFIGURATION

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