Synthesis, chemical structures elucidation and biological studies on the effect of some vital metal ions on vitamin A: Ca(II), Mg(II), Zn(II), Fe(III) and VO(II) complexes

被引：0
|
作者：
Zaky, M. [1 ]
El-Sayed, M. Y. [1 ,2 ]
El-Megharbel, S. M. [1 ,3 ]
Taleb, S. A. [1 ]
Refat, M. S. [3 ,4 ]
机构：
[1] Zagazig Univ, Fac Sci, Dept Chem, Zagazig, Egypt
[2] Al Jouf Univ Al Qurayate, Fac Appl Med Sci, Al Qurayyat, Saudi Arabia
[3] Taif Univ, Fac Sci, Dept Chem, At Taif 888, Saudi Arabia
[4] Port Said Univ, Fac Sci, Dept Chem, Port Said, Egypt
来源：
BULGARIAN CHEMICAL COMMUNICATIONS | 2015年 / 47卷 / 01期
关键词：
Vitamin A complexes; Infrared spectra; Electronic spectra; Thermal analysis; Antimicrobial activity; ANTIINFLAMMATORY DRUGS; CRYSTAL-STRUCTURE; COPPER-COMPLEXES; MECHANISM; ISOMERISM; FRAMEWORK;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Complexes of vitamin A as a pharmaceutical ligand with Ca(II), Mg(II), Zn(II), Fe(III) and VO(II), were synthesized and characterized by microanalysis, conductance, infrared and thermogravimetric (TG/DTG and DTA) measurements. The ligand can be coordinated as a monodentate ligand via the oxygen atom of the deprotonated hydroxyl group. Thermal degradation curves revealed that the uncoordinated water molecules are removed in a first stage while the decomposition of ligand besides coordinated water molecules took place in the second and subsequent steps. Vitamin A ligand, as well as its complexes were checked against some kinds of bacteria and fungi and produced a significant effect. The effect of kinetic thermodynamic parameters (E*, Delta H*, Delta S* and Delta G*) of the synthesized complexes upon the TG curves was calculated using Coats-Redfern and Horowitz-Metzger equations.
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页码：105 / 118
页数：14
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