Synthesis and Bioactivity of a Novel Bismuthoxide Schiff-base Complex Derived from Salen-like Ligand and Bismuth（III） Nitrate

• Published in: 高等学校化学研究：英文版 2016 (2), p.207-211
• Main Author: LI Chuanhua JIANG Jianhong LI Xu XIAO Shengxiong WEI Deliang JIANG Chao XIE Jinqi PENG Mengna GU Huiwen LI Qiangguo
• Format: Article
• Language: English
• Subjects: III; Salen; 合成; 希夫碱配合物; 氧化铋; 生物活性; 硝酸铋; 配体浓度
• ISSN: 1005-9040; 2210-3171

In this paper, a novel bismuthoxide Schiff-base complex [Bi9O8（vanen）3（NO3）2（CH3OH）2（H2O）·3NO3· 5.5H2O]（abbreviated as Bivanen） was synthesized with Salen-like ligand Hzvanen[Hzvanen=N,N＇-ethylene bis（3-methoxysalicylideneimine）] and bismuth（III） nitrate. Its structure was characterized by IR spectra, NMR spectra and X-ray diffraction. In particular, the biology activities of the ligand and the complex against Schizosaecharomyees pombe（S, pombe） were studied using biological mierocalorimetry. The metabolic thermogenic curves of S. pombe were measured at 32.00 ℃. Then, some quantitative thermokinetic parameters of growth metabolism of S. pombe including the rate constant（k）, inhibition ratio（I） and half inhibition concentration（IC50） were calculated. Experimental results showed that the k values of S. pombe decreased while I values of S. pombe increased with the increase of concentrations of the ligand and the complex. The IC50 of the ligand and the complex were found to be 0.067 and 0.037 mmol/L, respectively.