Uncommon crystallization pattern of a ZnII–sulfathiazole complex: Synthesis, X-ray structural features and TGA calculations of [{Zn(STZ)2(HSTZ)(H2O)}{Zn(STZ)
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- 作者：Gelson Manzoni de Oliveira ; Aline Baraldi ; Lenice de Lourenç ; o Marques ; Ernesto Schulz Lang ; Marcos Antonio Villetti
- 关键词：Sulfathiazole complexes ; Bioinorganic chemistry of Zn ; Metallation of biological ligands
- 刊名：Inorganica Chimica Acta
- 出版年：2008
- 出版时间：1 January 2008
- 年：2008
- 卷：361
- 期：1
- 页码：132-136
- 全文大小：275 K
文摘
Sulfathiazole reacts in methanol with Zn(CH3COO)2 · 2H2O at 65 °C to give [{Zn(STZ)2(HSTZ)(H2O)}{Zn(STZ)2(H2O)2}3] · 12H2O. The asymmetrical unit of the new compound is assembled by four single partial complexes with a different number of ligand molecules. The deprotonated sulfonamidic nitrogen atoms of the STZ ligands do not participate in the coordination processes, and in the course of the reaction/recrystallization a noteworthy aggregation of water molecules to the end product arises. TGA experiments allow us to consider that the peculiar structure of the title compound can be related to a cluster “come down”, also because of uncontrolled absorption of water.