化学学报 ›› 1987, Vol. 45 ›› Issue (11): 1039-1043.    下一篇

研究论文

[Cl2FeS2MoS2FeCl2]^2^-阴离子的FT-IR光谱和简正坐标分析

林政炎;何玲洁;张琳娜;卢嘉锡   

  1. 中国科学院福建物质结构研究所
  • 发布日期:1987-11-15

FT-IR spectra and normal coordinate analysis of the Cl2FeS2MoS2FeCl2]^2^- dianion

LIN ZHENGYAN;HE LINGJIE;ZHANG LINNA;LU JIAXI   

  • Published:1987-11-15

在500-100cm^-^1波段范围内测定了[Cl2FeS2MoS2FeCl2]^2^-簇阴离子的Fourier变换红外光谱.采用简化的普遍价力场(SGVFF)进行了简正坐标分析.振动基频的计算值与观测值符合良好,两者平均偏差小于1.0%证实了振动谱带的归属;确定了包括伸缩、变角、扭曲以及伸缩-伸缩相互作用的16个力常数.最后还讨论了所得结果的合理性和可靠性.

关键词: 红外分光光度法, 铁络合物, 固氮酶, 钼络合物, 二硫化物, 化学键, 簇状化合物, 阴离子, 多核络合物, 矩阵

The Fourier transform (FT) IR spectra of [Cl]2FeS2MoS2FeCl2]2- were measured at 100-500 cm-1. A simplified general valence force field was used in a normal coordinate anal. The calculated frequencies agreed with the observed ones, with a mean deviation of <1.0%, confirming the assignments of the vibrational spectrum. Sixteen force constants including stretching, bending, torsion, and stretching-stretching interactions were obtained. The rationality and the reliability of the results are discussed.

Key words: INFRARED SPECTROPHOTOMETRY, IRON COMPLEX, NITROGENASE, MOLYBDENUM COMPLEX, DISULFIDE, CHEMICAL BONDS, CLUSTER COMPOUND, ANION, POLYNUCLEAR COMPLEX, MATRICES

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