Crystal structure, thermal decomposition kinetics and antimicrobial activities of [Zn(eatZ)(2)(OAC)(2)] (eatz=5-ethyl-2-amino-1,3,4-thiadiazole)
文献类型: 外文期刊
第一作者: Shen, AQ
作者: Shen, AQ;Zhong, HJ;Zheng, H;Zhang, HY;Zhao, GH;Wu, QA;Mao, HY;Wang, EB;Zhu, Y
作者机构:
关键词: 1.3;4-thiadiazole;zinc;crystal structure;thermal decomposition;kinetics;bioactivity
期刊名称:POLYHEDRON ( 影响因子:3.052; 五年影响因子:2.274 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: The synthesis and characterization of a Zn(II) complex with 5-ethyl-2-amino-1,3,4-thiadiazole (eatz) are described. The crystal structure of [Zn(eatz)(2)(OAC)(2)] was determined by X-ray diffraction. The crystal belongs to the monoclinic system and the structural unit is a distorted tetrahedron. In this complex, eatz acts as a monodentate ligand coordinating through the thiadiazole N atom to Zn(II), and the crystal structure is mainly stabilized by both intra- and intermolecular hydrogen bonds. Thermal analysis reveals that the complex [Zn(eatz)(2)(OAC)(2)] decomposes in three transitions to give Zn(CN)(2) as the end product at 650 degreesC in N-2 atmosphere. The thermal decomposition kinetic analysis of the title complex indicates that the first transition is a double-step reaction with the main reaction being an nth auto-catalysis one. A biological activity study shows that both the ligand and the complex have good antimicrobial activities against Staphylococcus aureus. (C) 2004 Published by Elsevier Ltd.
分类号: O6
- 相关文献
作者其他论文 更多>>
-
EMBRYONIC FACTOR 1 encodes an AMP deaminase and is essential for the zygote to embryo transition in Arabidopsis
作者:Xu, J;Zhang, HY;Xie, CH;Xue, HW;Dijkhuis, P;Liu, CM
关键词:FAC1; zygote; embryogenesis; AMP deaminase
-
A genetic linkage map for watermelon derived from recombinant inbred lines
作者:Zhang, RB;Xu, Y;Yi, K;Zhang, HY;Liu, LG;Gong, GY;Levi, A
关键词:Citrullus; molecular markers; Fusarium; RAPD; ISSR; SCAR
-
Genetic assessment of watermelon germplasm using the AFLP technique
作者:Che, KP;Liang, CY;Wang, YG;Jin, DM;Wang, B;Xu, Y;Kang, GB;Zhang, HY
关键词:AFLP; cluster analysis; genetic diversity; watermelon; germplasm identification
-
AFLP fingerprint and SCAR marker of watermelon core collection
作者:Che, KP;Xu, Y;Liang, CY;Gong, GY;Weng, ML;Zhang, HY;Jin, DM;Wang, B
关键词:AFLP; variety identification; fingerprint; SCAR; watermelon
-
The toxicity test and hypothetical model of Bacillus thuringiensis Cry1Aa helix4
作者:Qu, H;Vachon, V;Luo, J;Zhang, J;Laprade, R;Zhu, Y
关键词:Bt toxin proteins;light scattered assay;ion channel;molecular model
-
Molecular cloning of a specific expression gene for cold acclimation in cucumber
作者:Kang, GB;Xu, Y;Yong, WD;Ge, L;Wang, LP;Zhang, HY;Wang, YJ;Chong, K
关键词:Cucumis sativus; cold acclimation; cDNA clone; mRNA differential display
-
The effect of ultra-dry methods and storage on vegetable seeds
作者:Kong, XH;Zhang, HY
关键词:germplasm; seed longevity; seed storage; temperature; water content; freeze drying; silica gel drying; heat drying; ultra-dry; Vigna unguiculata; Brassica oleracea; Brassica pekinensis; Brassica chinensis; Allium tuberosum; Cucumis sativus; Cucumis melo; Raphanus sativus; Lycopersicon esculentum