水杨醛酪氨酸铜配合物合成和EPR波谱  

Synthesis and EPR Spectra of Cu(Ⅱ ) Complexe with Salicylidene Tyrosine Schiff Base

作　　者：史卫良[1] 陈德余[1] 

机构地区：[1]浙江大学化学系,杭州310027

出　　处：《物理化学学报》2001年第2期181-184,共4页Acta Physico-Chimica Sinica

基　　金：浙江省自然科学基金资助项目! (No.297005 )&&

摘　　要：A new Schiff base derived from tyrosine and salicylidene and its copper(Ⅱ ) complex have been synthesized and characterized by elemental analyses,molar conductances,thermal analyses,infrared spectra,electronic spectra and EPR spectra.The composition of the complex is K[CuL(Ac)]· H2O, where L=H13C16NO4. EPR spectra of the copper(Ⅱ ) complex were investigated in various solvents at different temperatures.It is found that the linewidth of four hyperfine lines on solution spectra at room temperature is unequal and changes with mⅠ ,this could be satisfactorily explained by the relaxation effect.The relaxation time and the relaxation rate were calculated.By using spectral parameters from solution spectra at low temperature,the bonding parameters of Cu(Ⅱ ) complex were calculated.The bonding characterization and stability of the complex were disscussed.The results show that the in-planeσ-bond and the in-planeπ-bond in the complex all play an important role.A new Schiff base derived from tyrosine and salicylidene and its copper(Ⅱ ) complex have been synthesized and characterized by elemental analyses,molar conductances,thermal analyses,infrared spectra,electronic spectra and EPR spectra.The composition of the complex is K[CuL(Ac)]· H2O, where L=H13C16NO4. EPR spectra of the copper(Ⅱ ) complex were investigated in various solvents at different temperatures.It is found that the linewidth of four hyperfine lines on solution spectra at room temperature is unequal and changes with mⅠ ,this could be satisfactorily explained by the relaxation effect.The relaxation time and the relaxation rate were calculated.By using spectral parameters from solution spectra at low temperature,the bonding parameters of Cu(Ⅱ ) complex were calculated.The bonding characterization and stability of the complex were disscussed.The results show that the in-planeσ-bond and the in-planeπ-bond in the complex all play an important role.

关 键 词：水杨醛酪氨酸度夫碱 铜配合物 合成 EPR波谱 弛豫参数 键参数 

分 类 号：O627[理学—有机化学]