镧与L-酪氨酸和甘氨酸三元固态配合物的热化学研究  

Thermochemistry study of the solid ternary complexes of the lanthanum with L-Tyrosine and Glycine

作　　者：屈景年[1] 刘义[2] 屈松生[2] 李强国[3] 

机构地区：[1]衡阳师范学院化学系,湖南衡阳421008 [2]武汉大学化学学院,湖北武汉430072 [3]郴州师范高等专科学校化学系,湖南郴州423000

出　　处：《化学研究与应用》2002年第4期412-414,共3页Chemical Research and Application

基　　金：武汉大学青年学术骨干专项基金资助项目

摘　　要：The dissolution enthalpy of the reactans and the products was determined by solution calorimetry.The calorimetric solvent is 2mol·L -1 HCl solution.A thermochemistry cycle was designed to obtain the enthalpy of coordination reaction,Δ rH  m=-479.321kJ·mol -1 ,and the standardmolar enthalpy of formation of the new complex La(Tyr)(Gly) 3Cl 3·3H 2O(s) was calculated,Δ fH  m[La(Tyr)(Gly) 3Cl 3·3H 2O,s298.2K]=-4695.266kJ·mol -1 .The dissolution enthalpy of the reactans and the products was determined by solution calorimetry.The calorimetric solvent is 2mol·L -1 HCl solution.A thermochemistry cycle was designed to obtain the enthalpy of coordination reaction,Δ rH  m=-479.321kJ·mol -1 ,and the standardmolar enthalpy of formation of the new complex La(Tyr)(Gly) 3Cl 3·3H 2O(s) was calculated,Δ fH  m[La(Tyr)(Gly) 3Cl 3·3H 2O,s298.2K]=-4695.266kJ·mol -1 .

关 键 词：镧 L-酪氨酸 甘氨酸 三元固态配合物 稀土 氨基酸 热化学 标准生成焓 

分 类 号：O614.331[理学—无机化学] O642.3[理学—化学]