N,N,N-三(2-甲基苯并咪唑)胺氧钒配合物的合成、表征及光谱性质研究

Synthesis,characterize and spectral properties of the oxovanadium(V) complex containing N,N,N-tris(2-benzimidazolmethyl)amine ligand

本文用微波法合成了配体N,N,N-三(2-甲基苯并咪唑)胺,并以无水甲醇为溶剂,在常温条件下合成了配体与硫酸氧钒的配合物。通过红外光谱和元素分析对其结构进行了表征,并对其紫外吸收峰随pH值的变化及荧光性质进行了研究,结果表明配体在紫外光区吸收峰的强度随pH值的增大而降低,而配合物吸收峰的强度随pH值的增大先降低后增高,二者均发生红移;氧钒配位后使配体发生荧光猝灭。

A new complex, [ VO（NTB） （H2O）SO4 · 3H2O] , has been sYnthesized in methanol at room temperature （NTB = N, N, N- tris（2- benzimidazolmethyl）amine）. The complex has been characterized by IR spectra and elemental analysis. The UV spectrum show that the absorption peaks decrease for ligand and first de- crease and then increase for complex as a function of pH, and both absorption peaks bathoehromic shift. The formation of the complex can result in fluorescence quenching of the ligand.