Citation: HE Chuan-Chuan, LI Yue, ZHAO Jing, XU Guan-Cheng, SUN Su-Rong. Synthesis, Crystal Structure and Biological Properties of One Zinc(Ⅱ) Complex Based on 4-Acyl Pyrazolone Derivative[J]. Chinese Journal of Structural Chemistry, ;2015, 34(7): 1019-1027. doi: 10.14102/j.cnki.0254-5861.2011-0648
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[Zn(L)(CH3OH)3] (H2L=N-(1-phenyl-3-methyl-4-propenylidene-5-pyrazolone)-salicylidene hydrazide) has been synthesized by the reaction of zinc nitrate and ligand H2L. The complex crystallizes in orthorhombic system, space group Pbca with a=5.888(15), b=14.564(14), c=22.20(2)Å, V=5137(8)Å3, Z=8 and F(000)=2184. The ligand serves as a negative bivalent tridentate chelating agent to coordinate with the central zinc(Ⅱ) atom. DNA-binding was studied by UV-Vis spectral analysis and ethidium bromide (EB) displacement experiments. The results showed that the DNA-binding constant of the complex is 5.1×104M-1. Antitumor activity of [Zn(L)(CH3OH)3] and the ligand have been investigated by MTT assay, which indicated that the complex has better cytotoxicity to Eca-109 and HeLa than free ligand.
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