Syntheses and characterization of Zn(II), Cd(II) and Hg(II) complexes with 5-methyl-1-(2′-pyridyl)-pyrazole-3-carboxamide (MPyPzCA) ligand

被引:11
作者
Morsali, A
Ramazani, A
机构
[1] Tarbiat Modarres Univ, Dept Chem, Sch Sci, Tehran, Iran
[2] Zanjan Univ, Dept Chem, Zanjan, Iran
关键词
pyridyl pyrazolyl carboxamide; X-ray crystal structure; coordination chemistry; zinc(II); cadmium(II); mercury(II);
D O I
10.1080/00958970500070384
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
From the reaction between Zn(II), Cd(II) and Hg(II) with 5-methyl-1-(2'-pyridyl) pyrazole-3- carboxamide (MP(y)P(z)CA) in ethanol, the complexes [Zn(MP(y)P(z)CA)(2)(NO3)](+) [(NO3)(0.60)(ClO4)(0.40)](-) center dot H2O, Cd(MP(y)P(z)CA)(2)Cl-2 and Hg(MP(y)P(z)CA)(SCN)(2) were obtained. These compounds have been characterized by IR and CHN analyses. The structure of [Zn(MP(y)P(z)CA)(2)NO3](+)[(NO3)(0.60)(ClO4)(0.40)](-) center dot H2O has been solved by X-ray crystallography. The coordination environment around the Zn( II) may be described as a trigonal bipyramid in which the ligands are both bidentate, but coordinated differently. The coordination sphere is completed with the oxygen atom of a nitrate anion as a unidentate ligand.
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页码:751 / 758
页数:8
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