Chem. J. Chinese Universities ›› 2015, Vol. 36 ›› Issue (5): 856.doi: 10.7503/cjcu20140732

• Articles: Inorganic Chemistry • Previous Articles     Next Articles

Synthesis and Biological Activities of o-Vanillin-histidine Schiff-base and Its Lanthanum Complex

LI Xu1, JIANG Jianhong1, HAN Buxing2, GU Huiwen3, XIE Zhaofeng4, CHEN Lan4, XIAO Shengxiong1, LI Chuanhua1, LI Aitao1, LI Xia1, YAO Feihong1, WANG Qun1, LI Qiangguo1,*()   

  1. 1. Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds and Applications,Department of Chemistry and Life Science, Xiangnan University, Chenzhou 423043, China
    2. Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
    3. State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering,Hunan University, Changsha 410082, China
    4. Jingui Silver Industry Co., Ltd., Chenzhou 423043, China
  • Received:2014-08-07 Online:2015-05-10 Published:2015-04-17
  • Contact: LI Qiangguo E-mail:liqiangguo@163.com
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21273190) and the Science and Technology Ministry Foundation of Hunan Province, China(Nos.2012TP4021-5, 2013FJ3033)

Abstract:

Two new compounds, o-vanillin-histidine Schiff-base and its lanthanum(Ⅲ) complex, were synthesized. Element analysis, X-ray diffraction analysis, ultraviolet-visual spectra, infrared spectra, thermogravimetry-differential thermal analysis and chemical analysis were employed to characterize the compositions and structures of o-vanillin-histidine Schiff base and its lanthanum(Ⅲ) complex. The results show that the molecular formula of the o-vanillin-histidine Schiff base and lanthanum(Ⅲ) Schiff base complex are C14H15N3O4·H2O and La(C14H15N3O4)Cl2·3H2O, respectively. The biological activities of C14H15N3O4·H2O and La(C14H15N3O4)Cl2·3H2O were studied using biological microcalorimetry. The metabolic thermogenic curves of S. pombe were measured at 301.15 K. Some thermokinetic parameters of growth and metabolism of S. pombe, such as the rate constant(k), generational time(tG), total thermal effects(Qtotal), inhibition ratio(I) and half inhibition concentration(IC50), etc., were calculated. Experimental results show that the k and Qtotal values of S. pombe decrease, while tG and I values of S. pombe increase with the increase of the concentrations of C14H15N3O4·H2O and La(C14H15N3O4)Cl2·3H2O. The IC50 values for C14H15N3O4·H2O and La(C14H15N3O4)Cl2·3H2O were found to be 0.2585 and 0.2488 mmol/L, respectively.

Key words: Biological microcalorimetry, Biological activity, o-Vanillin-histidine Schiff-base, Lanthanum(Ⅲ) Schiff-base complex, S. pombe cell

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