Structural investigation, theoretical DFT, Hirshfeld surface analysis and catalytic behaviour towards 3,5-DTBC oxidation of two cobalt(ii) complexes with semicarbazone Schiff base ligands
作者:Manas Chowdhury、Niladri Biswas、Sandeepta Saha、Ennio Zangrando、Corrado Rizzoli、Nayim Sepay、Chirantan Roy Choudhury
DOI:10.1007/s11243-023-00523-0
日期:——
Two novel cobalt(ii) complexes [Co(HL1)2](NO3)2.2.5H2O (1) and [Co(HL2)2](NO3)2 (2) (where HL1 = (E)-2-(1-(pyridin-2-yl)ethylidene)hydrazine-1-carboxamide and HL2 = (E)-2-(pyridin-2-ylmethylene)hydrazine-1-carboxamide) have been synthesized and structurally characterized by spectroscopic techniques and single-crystal diffraction analysis. The complexes are close comparable with metals exhibiting the
两种新型钴 ( ii ) 配合物 [Co(HL 1 ) 2 ](NO 3 ) 2 .2.5H 2 O ( 1 ) 和 [Co(HL 2 ) 2 ](NO 3 ) 2 ( 2 )(其中 HL 1 = (E)-2-(1-(pyridin-2-yl)ethylidene)hydrazine-1-carboxamide 和 HL 2 = (E)-2-(pyridin-2-ylmethylene)hydrazine-1-carboxamide) 已合成并通过光谱技术和单晶衍射分析进行结构表征。这些配合物与金属表现出预期的扭曲八面体几何形状非常相似,这些金属被两个缩氨基脲配体通过 NNO 供体组螯合。使用 3,5-二叔丁基儿茶酚底物评估复合物1和2的儿茶酚酶样活性。结果表明,这两种配合物都是有效的催化剂,K cat值分别为762和562。还进行了理论 DFT 研究和 Hirschfeld 表面分析,