Transition Metal Complexes of Oxygen and Nitrogen Containing Schiff Base Derived from 4-Methyl-1,2-dihydro-2-oxoquinazoline
作者:B.K. Rai、Rahul Anand
DOI:10.14233/ajchem.2013.13199c
日期:——
Co(II), Ni(II) and Cu(II) complexes of 4-methyl-1,2-dihydro-2-oxoquinazoline were synthesized and characterized by molar mass, elemental analyses, infrared spectra, electronic spectra, conductivity and magnetic measurements. The analytical data proposes the composition of the metal complexes to be ML2X2; where M = Co(II), Ni(II); X = Cl–, Br–, I– and NO3– and M = Cu(II), X = X = Cl–, Br– and NO3–; L = 4-methyl-1,2-dihydro-2-oxoquinazoline hydrazone. IR results demonstrate the bidentate binding of the Schiff base involving azomethine nitrogen and carbonyl oxygen. The electronic spectral measurements proposes Co(II), Ni(II) have octahedral geometry, where Cu(II) complexes have distorted octahedral geometry.
合成了 4-甲基-1,2-二氢-2-氧代喹唑啉的 Co(II)、Ni(II) 和 Cu(II) 配合物,并通过摩尔质量、元素分析、红外光谱、电子能谱、电导率和磁性测量进行表征。分析数据表明金属配合物的组成为ML2X2;其中 M = Co(II), Ni(II); X = Cl–、Br–、I– 和 NO3–,M = Cu(II),X = X = Cl–、Br– 和 NO3–; L = 4-甲基-1,2-二氢-2-氧代喹唑啉腙。红外结果表明席夫碱的双齿结合涉及偶氮甲碱氮和羰基氧。电子光谱测量表明Co(II)、Ni(II)具有八面体几何形状,其中Cu(II)配合物具有扭曲的八面体几何形状。