Chandra Sulekh, Kumar Anil
Department of Chemistry, Zakir Husain College, JLN Marg, New Delhi, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2007 Nov;68(3):469-73. doi: 10.1016/j.saa.2006.11.053. Epub 2006 Dec 15.
Mn(II), Co(II), Ni(II) and Cu(II) complexes are synthesized with thiosemicarbazone (L) derived from pyrrole-2-carboxyaldehyde. These complexes are characterized by elemental analysis, molar conductance, magnetic susceptibility measurement, mass, IR, electronic and EPR spectral studies. The molar conductance measurement of the complexes in DMSO indicates that the complexes are non-electrolyte except Co(L)2(NO3)2 and Ni(L)2(NO3)2 complexes which are 1:2 electrolyte. All the complexes are of high-spin type. On the basis of spectral studies an octahedral geometry may be assigned for Mn(II), Co(II) and Ni(II) complexes except Co(L)2(NO3)2 and Ni(L)2(NO3)2 which are of tetrahedral geometry. A tetragonal geometry may be suggested for Cu(II) complexes.
用吡咯 - 2 - 甲醛衍生的硫代氨基脲（L）合成了锰（II）、钴（II）、镍（II）和铜（II）配合物。通过元素分析、摩尔电导率、磁化率测量、质谱、红外光谱、电子光谱和电子顺磁共振光谱研究对这些配合物进行了表征。配合物在二甲基亚砜中的摩尔电导率测量表明，除了钴（L）₂(NO₃)₂和镍（L）₂(NO₃)₂配合物为1:2电解质外，其他配合物均为非电解质。所有配合物均为高自旋型。基于光谱研究，除了钴（L）₂(NO₃)₂和镍（L）₂(NO₃)₂为四面体几何构型外，锰（II）、钴（II）和镍（II）配合物可能具有八面体几何构型。铜（II）配合物可能具有四方几何构型。
