Copper(II) complex of N,N´-bis-(benzimidazol-2-yl-methyl)-hexane-1,6-dicarboxamide ligand: synthesis, structure and catalytic oxidation of amines in ionic liquid
作者:Gauri Ahuja、Kuldeep Mahiya
DOI:10.1007/s11243-023-00566-3
日期:2024.4
A new copper(II) complex, [Cu(L)NO3]NO3·2H2O, has been synthesized with N, N'-bis-(benzimidazol-2-yl-methyl)-hexane-1,6-dicarboxamide as a ligand, L = GBSA (Ahuja and Mathur in Spectrochim Acta Part A 83:180–186, 2011). The single-crystal X-ray structure characterization confirms that copper(II) ion in the complex possesses a distorted penta-coordinate geometry with one of the nitrate anions bound
以N , N' -双-(苯并咪唑-2-基-甲基)-己烷-1,6-为原料合成了一种新的铜(II)配合物[Cu(L)NO 3 ]NO 3 ·2H 2 O。二甲酰胺作为配体,L = GBSA(Ahuja 和 Mathur in Spectrochim Acta Part A 83:180–186, 2011)。单晶 X 射线结构表征证实,配合物中的铜 (II) 离子具有扭曲的五配位几何形状,其中一个硝酸根阴离子作为单齿配体与铜 (II) 结合。铜(II)配合物的N 2 O 2赤道面由羰基氧原子(O1)、硝基氧原子(O3)和两个苯并咪唑氮原子(N1,N4)组成,轴向位置被氧原子( O2)的酰胺羰基。低温 EPR 研究表明四方几何形状扭曲,而阴极E 1/2值表明铜在溶液中稳定在 +2 氧化态。 TGA 数据显示了复合物的热分解模式。该配合物在离子液体中作为芳香族和脂肪族伯胺和仲胺的氧化催化剂进行了研究,[BMIM][BF