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有机化学
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有机化学 ›› 2005, Vol. 25 ›› Issue (11): 1427-1430. 上一篇    下一篇

研究论文

硫、氮双齿配体与Cd(II)和Hg(II)配合物的合成与表征

刘晓岚1，刘永红*,1，袁冬梅2，景淆壁1，石尧成1   

  1. (1扬州大学化学化工学院 扬州 225002)
    (2天水师范学院化学系 天水 741001)
  • 收稿日期:2005-06-30 修回日期:2005-08-30 发布日期:2005-10-30
  • 通讯作者: 刘永红

Synthesis of Complexes of Bidentate Ligands with Cd(II) and Hg(II)

LIU Xiao-Lan1,LIU Yong-Hong*,1,YUAN Dong-Mei2
JING Xiao-Bi1,SHI Yao-Cheng1   

  1. (1 Chemistry and Chemical Engneering College, Yangzhou University, Yangzhou 225002)
    (2 Department of Chemistry, Normal College of Tianshui, Tianshui 741000)
  • Received:2005-06-30 Revised:2005-08-30 Published:2005-10-30
  • Contact: LIU Yong-Hong

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以HMFC[(反)-肉桂酰基二茂铁缩(S)-甲基二硫代碳酰腙]与HBFC[(反)-肉桂酰基二茂铁缩(S)-苄基二硫代碳酰腙]两种Schiff碱分别与醋酸镉[Cd(OAc)2•2H2O]、醋酸汞[Hg(OAc)2]反应, 合成了6个未见文献报道的配合物Cd(MFC)2•H2O, Cd(MFC)•OAc, Cd(BFC)2, Hg(MFC)2, Hg(MFC)•OAc, Hg(BFC)2, 考察了其物理性质, 并利用元素分析、IR, 1H NMR及摩尔电导表征了其组成、可能结构, 推断了配位过程. 结果表明: 这两种Schiff 碱都是反式双齿配体, 经烯硫醇化并失去质子后, 以负硫离子与过渡金属离子形成共价键, 氮原子与中心金属离子形成配位键.

关键词: (反)-肉桂酰基二茂铁缩二硫代碳酰腙, 合成, 席夫碱, 双齿配体, 配合物

Six complexes of two Schiff bases, methyl 1-ferrocenylcinnamylidene hydrazinodithiocarboxylate (HMFC) and benzyl 1-ferrocenylcinnamylidene hydrazinodithiocarboxylate (HBFC), with M(OAc)•nH2O [M＝Cd(II) or Hg(II), n＝2, 0], Cd(MFC)2•H2O, Cd(MFC)•OAc, Cd(BFC)2, Hg(MFC)2, Hg(MFC)2•OAc and Hg(BFC)2, have been synthesized and characterized by elemental analysis, molar conductance, IR and 1H NMR spectrum measurements. The possible coordinating process and complex structures have been discussed. It was found that two ligands are bidentate ones with trans configuration coordinating to the metal ions via nitrogens and sulfur atoms after their tautomerization of thione to thiol and deprotonation of the thiol.

Key words: Schiff base, synthe-sis, bidentate ligand, complex, 1-ferrocenylcinnamylidene hydrazinodithiocarboxylate