高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (2): 173.

• 论文 • 上一篇    下一篇

Pd2X2(dpm)2(X＝NCO-,CH3CO2-,SCN-,NO3-;dpm＝Ph2PCH2PPh2配合物与H2S反应的NMR研究

翁维正   

  1. 厦门大学化学系, 厦门, 361005
  • 收稿日期:1993-03-24 修回日期:1993-08-30 出版日期:1994-02-24 发布日期:1994-02-24
  • 通讯作者: 翁维正,男,32岁,博士,讲师.
  • 作者简介:翁维正,男,32岁,博士,讲师.

NMR Study of the Reaction of Pd2X2(dpm)2 (X=NCO-,CH3CO2-,SCN-,NO2-;dpm=Ph2PCH2PPh2) Complexes with H2S

WENG Wei-Zheng   

  1. Department of Chemistry, Xiamen University, Xiamen, 361005
  • Received:1993-03-24 Revised:1993-08-30 Online:1994-02-24 Published:1994-02-24

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摘要： 采用NMR方法考察了室温和低温(-78～60℃)下Pd2X2(dpm)2(X=NCO-,CH3CO2-,SCN-和NO3-,dpm=Ph2PCH2PPh2)与H2S在CD2Cl2或CDCl3中的反应。结果表明,在X=NCO-和CH3CO2-的情况下,H2S优先与这些Pd配合物的阴离子作用生成相应的共轭酸HX和Pd2(SH)2(dpm)2,后者在H2S存在下又进一步转化为Pd2(SH)2(dpm)2(μ-S);当X=SCN-和NO3-时,反应则生成结构可能为[Pd2(H)(SH)(μ-SH)(dpm)2]+的双核Pd配合物。

关键词: 钯配合物, 双二苯膦基甲烷, 硫化氢

Abstract: The reactions of Pd2X2(dpm)2(X=NCO-,CH3CO,SCN- and NO;dpm = Ph2PCH2PPh2)with H2Sin CD2Cl2 or CDCl3 were studied by NMRat room and low temperature (-78--60 ℃).In the case of X = NCO- and CH3CO2-, H2S at first reacted with the anions of the palladium complexes and generated HX and Pd2(SH)2(dpm)2 that was subsequently converted to Pd2(SH)2(dpm)2(μ-S)in the presence of excess amount of H2S.In the case of X=SCN- and NO3-,the reactions resulted in the formation of a dinuclear palladium complex with a possible structure of[Pd2(H)(SH)(μ-SH)(dpm)2]+.

Key words: Palladium complex, Bis(diphenylphosphino)methane, Hydrogen sulfide

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