Synthesis and crystal structures of cobalt(III), copper(II), nickel(II) and zinc(II) complexes derived from 4-methoxy-<i>N′</i>-(pyridin-2-ylmethylene)benzohydrazide with urease inhibitory activity
作者:Huiyuan Yu、Sihan Guo、Jun-Yan Cheng、Guifa Jiang、Zhiwen Li、Wenqi Zhai、Ang Li、Yumin Jiang、Zhonglu You
DOI:10.1080/00958972.2018.1533959
日期:2018.12.17
harmful effects on both human health and fertile soil. Aiming at exploring novel urease inhibitors, a series of hydrazone compounds and their CoIII, CuII, NiII, and ZnII complexes were prepared from 4-methoxy-N'-(pyridin-2-ylmethylene)benzohydrazide (HL). They are [CoClL(NCS)] (1), [CoL2]·Cl·CH3OH·H2O (2), [CuL(NCNCN)]n·nCH3OH (3), [NiL(HL)]·ClO4·CH3OH (4) and [ZnClL(OH2)]·CH3OH (5). The compounds were
摘要 脲酶催化尿素分解成氨,对人体健康和肥沃的土壤都有害。为探索新型脲酶抑制剂,以4-甲氧基-N'-(吡啶-2-基亚甲基)苯甲酰肼(HL)为原料制备了一系列腙化合物及其CoIII、CuII、NiII和ZnII配合物。它们是 [CoClL(NCS)] (1), [CoL2]·Cl·CH3OH·H2O (2), [CuL(NCNCN)]n·nCH3OH (3), [NiL(HL)]·ClO4·CH3OH (4) ) 和 [ZnClL(OH2)]·CH3OH (5)。通过物理化学方法对化合物进行表征。通过单晶X射线衍射进一步证实了配合物的结构。1、3 和 5 中的金属离子显示方锥配位,2 和 4 中显示八面体配位。评价了化合物对杰克豆脲酶的抑制作用。结果表明3具有有效的脲酶抑制活性,IC50值为(7.3±1.0)μmol L−1。图形概要