Synthesis, Characterization and Molecular Structure of 2-Pyridyl-formamide N(4)-Dimethylthiosemicarbazone and Some Five-Coordinated Zinc(II) and Cadmium(II) Complexes
作者:Elena Bermejo、Alfonso Castiñeiras、Larissa M. Fostiak、Isabel García、Antonio L. Llamas-Saiz、John K. Swearingen、Douglas X West
DOI:10.1515/znb-2001-1208
日期:2001.12.1
reduces 2-cyanopyridine in the presence of N(4)-dimethylthiosemicarbazide to produce 2-pyridyl-formamide N(4)-dimethylthiosemicarbazone, HAm4DM. Complexes with zinc(II) and cadmium(II) of formulae [M(Am4DM)(OAc)]2 and [M(HAm4DM)X2] (M = Zn or Cd, X = Cl, Br or I) have been prepared and characterized by spectroscopic techniques. In addition, the crystal structures of HAm4DM, [Zn(HAm4DM)Br2], and [Cd(HAm4DM)l2]
摘要 无水甲醇中的钠在 N(4)-二甲基氨基硫脲存在下还原 2-氰基吡啶,生成 2-吡啶基甲酰胺 N(4)-二甲基氨基硫脲,HAm4DM。已经制备了具有式 [M(Am4DM)(OAc)]2 和 [M(HAm4DM)X2](M = Zn 或 Cd,X = Cl、Br 或 I)的锌(II)和镉(II)配合物,并且以光谱技术为特征。此外,HAm4DM、[Zn(HAm4DM)Br2]和[Cd(HAm4DM)l2]DMSO的晶体结构已经得到解决。HAm4DM 处于两性离子形式,在亚胺氢和硫醇合硫原子之间具有氢键相互作用。中性缩氨基硫脲配体通过吡啶基氮、亚胺氮和硫酮硫原子进行配位,而 [M(Am4DM)(OAc)]2 中的阴离子配体与相同的两个氮原子和硫醇合硫原子配位。