New Complexes of Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) with 3,3-dimethylglutaric Acid

被引：0
|
作者：
W. Brzyska
W. Ożga
机构：
[1] Maria Curie Skłodowska University,Department of General Chemistry, Faculty of Chemistry
来源：
Journal of Thermal Analysis and Calorimetry | 2002年 / 67卷
关键词：
3,3-dimethylglutarate; DTA; IR spectra; magnetic moments; synthesis; TG;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Conditions for the preparation of Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II)3,3-dimethylglutarates were investigated and their quantitative composition, solubility in water at 293 K and magnetic moments were determined. IR spectra and powder diffraction patterns of the complexes prepared with general formula MC7H10O4⋅nH2O (n=0−2) were recorded and their thermal decomposition in air were studied. During heating the hydrated complexes of Mn(II),Co(II), Ni(II) and Cu(II) are dehydrated in one step and next all the anhydrous complexes decompose to oxides directly (Mn, Co, Zn) or with intermediate formation free metal (Ni,Cu) or oxocarbonates (Cd). The carboxylate groups in the complexes studied are bidentate. The magnetic moments for the paramagnetic complexes of Mn(II), Co(II), Ni(II) and Cu(II)attain values 5.62, 5.25, 2.91 and 1.41 M.B., respectively.
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页码：623 / 629
页数：6
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