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硫、氮双齿配体与Cd(II)和Hg(II)配合物的合成与表征
Synthesis of Complexes of Bidentate Ligands with Cd(II) and Hg(II)
【摘要】 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,1HNMR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.
【Abstract】 Six complexes of two Schiff bases, methyl 1-ferrocenylcinnamylidene hydrazinodithiocarboxy- late (HMFC) and benzyl 1-ferrocenylcinnamylidene hydrazinodithiocarboxylate (HBFC), with M(OAc)2nH2O [M=Cd(II) or Hg(II), n=2, 0], Cd(MFC)2H2O, Cd(MFC)OAc, Cd(BFC)2, Hg(MFC)2, Hg(MFC)OAc and Hg(BFC)2, have been synthesized and characterized by elemental analysis, molar con- ductance, IR and 1H NMR spectrum measurements. The possible coordinating process and complex struc- tures have been discussed. It was found that two ligands are bidentate ones with trans configuration coordi- nating to the metal ions via nitrogens and sulfur atoms after their tautomerization of thione to thiol and de- protonation of the thiol.
【Key words】 1-ferrocenylcinnamylidene hydrazinodithiocarboxylate; Schiff base; bidentate ligand; complex; synthesis;
- 【文献出处】 有机化学 ,Chinese Journal of Organic Chemistry , 编辑部邮箱 ,2005年11期
- 【分类号】O641.4
- 【被引频次】4
- 【下载频次】296