Title :
Study on the preparation, characterization and antibacterial activity of complex for gadolinium iodide with thiourea
Author :
Weiping Jiang ; Peng Peng ; Yuzhao Liu ; Xingang Wang ; Xin Wang
Author_Institution :
Eng. Command Inst. of Chem. Defense, Beijing, China
Abstract :
The complex GdI3·2CS(NH2)2·10H2O was prepared with a new method and characterized on the basis of elemental analysis, X-ray powder diffraction, infrared analysis, mass spectroscopy, and thermogravimetry and differential thermal analysis. The coordinative cation [Gd(H2O)9]3+ is formed by Gd3+ and nine H2O, CS(NH2)2 acts on Gd3+ through N and S, three I- and the rest H2O act on [Gd(H2O)9]3+ by the form of static attraction or hydrogen bond. And the antibacterial activity against escherichia coli, staphylococcus aureus and bacillus subtilis of gadolinium iodide, thiourea and the complex was studied first. The results showed that the antibacterial activity of all samples against bacillus subtilis was better than that against escherichia coli and staphylococcus aureus. The antibacterial activity of high concentration solution(0.05mol·L-1) was better than that of low concentration(0.01mol·L-1). The antibacterial activity of the complex GdI3·2CS(NH2)2·10H2O was better than that of corresponding coordinator.
Keywords :
X-ray diffraction; antibacterial activity; differential thermal analysis; gadolinium compounds; hydrogen bonds; infrared spectra; mass spectroscopy; powder technology; GdI3CS(NH2)2-H2O; X-ray powder diffraction; antibacterial activity; bacillus subtilis; differential thermal analysis; elemental analysis; escherichia coli; hydrogen bond; infrared analysis; mass spectroscopy; mass thermogravimetry; Absorption; Anti-bacterial; Diffraction; Helium; Infrared spectra; Thermal analysis; X-ray diffraction; Gd complex; antibal activity; gadolinium iodide; rare earths; thiourea;
Conference_Titel :
Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on
Conference_Location :
Harbin, Heilongjiang, China
Print_ISBN :
978-1-61284-087-1
DOI :
10.1109/EMEIT.2011.6022999
