Abstract The napthyl/pyridine-pyrazole-derived complexes, [Mn(L1)Cl2] (1), [Co(L1)Cl2] (2), [Cu(µ-Cl)(Cl)(L)]2 (3), [Cu2(L)2(N3)3(µ2-N3)] (4), and [Co(L2)Cl2] (5) (where L1 = bis-(3,5-dimethyl-pyrazol-1-ylmethyl)-napthalen-1-ylmethyl-amine (L1), L = 5-methyl-pyrazol-1-ylmethyl) -napthalen-1-ylmethyl-amine (L) and L2 = 2-[2-(3,5-dimethyl-pyrazol-1-yl)-1-methyl-ethyl]-pyridine), exhibited phenoxazinone synthase activity in methanol in the range 5–54 h−1. Binuclear copper(II) derivatives 3 and 4 show better catalytic activities than manganese(II) and cobalt(II) derivatives. The kinetic studies reveal that phenoxazinone chromophore is produced via a complex-substrate intermediate. Further, 3 and 4 show catecholase activity in methanol in the presence of oxygen. All the complexes showed potent antimicrobial activity against the tested strains of bacteria and fungi. Complex 1 was synthesized for the first time by mixing L1 and MnCl2 (1:1) and characterized by single-crystal X-ray crystallography, cyclic voltammetry, density functional theory, and thermogravimetry analysis. The present study suggests that napthyl/pyridyl-anchored pyrazole metal complexes are interesting scaffolds for the development of novel model compounds for biochemical reaction and efficient antimicrobial agents. Graphical Abstract

中文翻译：

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萘基-吡唑Mn(II)配合物的合成、结构和催化混杂以及构效关系

摘要 萘基/吡啶-吡唑衍生的配合物，[Mn(L1)Cl2] (1), [Co(L1)Cl2] (2), [Cu(µ-Cl)(Cl)(L)]2 (3) )、[Cu2(L)2(N3)3(µ2-N3)] (4) 和 [Co(L2)Cl2] (5)（其中 L1 = 双-(3,5-二甲基-吡唑-1- ylmethyl)-napthalen-1-ylmethyl-amine (L1), L = 5-methyl-pyrazol-1-ylmethyl) -naphalen-1-ylmethyl-amine (L) 和 L2 = 2-[2-(3,5-二甲基-吡唑-1-基)-1-甲基-乙基]-吡啶)，在甲醇中在 5-54 h-1 范围内表现出吩恶嗪酮合酶活性。双核铜 (II) 衍生物 3 和 4 显示出比锰 (II) 和钴 (II) 衍生物更好的催化活性。动力学研究表明吩恶嗪酮发色团是通过复杂的底物中间体产生的。此外，图 3 和图 4 在氧气存在下在甲醇中显示儿茶酚酶活性。所有复合物均显示出对所测试的细菌和真菌菌株的强效抗菌活性。首次通过混合 L1 和 MnCl2 (1:1) 合成了配合物 1，并通过单晶 X 射线晶体学、循环伏安法、密度泛函理论和热重分析进行了表征。本研究表明，萘基/吡啶基锚定的吡唑金属配合物是开发用于生化反应的新型模型化合物和有效抗菌剂的有趣支架。图形概要 本研究表明，萘基/吡啶基锚定的吡唑金属配合物是开发用于生化反应的新型模型化合物和有效抗菌剂的有趣支架。图形概要 本研究表明，萘基/吡啶基锚定的吡唑金属配合物是开发用于生化反应的新型模型化合物和有效抗菌剂的有趣支架。图形概要