高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (12): 1651.

• 研究简报 • 上一篇    下一篇

双核钨簇合物W2Cl4(OR)4(ROH)2结构的EXAFS研究

段永恒, 金松林, 洪波, 马礼敦   

  1. 复旦大学分析测试中心化学系, 上海 200433
  • 收稿日期:1993-04-14 修回日期:1993-07-25 出版日期:1993-12-24 发布日期:1993-12-24
  • 通讯作者: 马礼敦.
  • 作者简介:段永恒, 男. 30岁, 现在郑州教育学院.
  • 基金资助:

    国家自然科学基金

Structural Research of the Cluster Compounds of W2Cl4(OR)4(ROH)2 by EXAFS

DUAN Yong-Heng, JIN Song-Lin, HONG Bo, MA Li-Dun   

  1. Centre for Analysis and Measurement, Chemistry Department, Fudan University, Shanghai, 200433
  • Received:1993-04-14 Revised:1993-07-25 Online:1993-12-24 Published:1993-12-24

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关键词: 双核钨簇合物, EXAFS, 结构

Abstract: Five cluster compounds of double tungsten nucleus W2Cl4(OR)4(ROH)2 have been investigated by EXAFSin which R- is Pr-, n-Bu, i-Bu, sec-Bu and n-Oct respcctivily.An in-lab EXAFSspectrometer-FXASwas used to collect the data of W LIedges.The backscattering amplitudes and the phase shifts of W, Cl and Oatoms were obtained from the standard W2Cl4(OCH3)4(CH3OH)2. The structural parameters of the clusters from the curve fitting are listed.The conclusion is that the structures of cluster nucleus of the five compounds do not obviously change with the change of the size and the structure of the group--ORin the compounds.The structural stability results from the double bond and two bridge oxygen bonds between the two tungsten atoms.

Key words: Binucleus clusters of tungsten, EXAFS, Structure

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