镧与谷氨酸丙氨酸混配合物的热化学  

Thermochimica of Complexes of L-Gluamic and L-Alanine with La(Ⅲ)

作　　者：屈景年[1] 刘金春 莫运春[3] 刘梦琴[3] 

机构地区：[1]衡阳师范学院化学与材料科学系,湖南衡阳421008 [2]湖南建材专科学校,湖南衡阳421001 [3]街阳师范学院化学与材料科学系,湖南衡阳421008

出　　处：《衡阳师范学院学报》2003年第6期37-39,共3页Journal of Hengyang Normal University

基　　金：衡阳师范学院科研基金

摘　　要：合成了镧与氨基酸混配体配合物,通过红外光谱、热重分析和化学分析确定其组成;并用溶解量热法测定了配合物和反应物分别在2mol.L ~1HCl中的溶解焓,根据热化学原理求出配合反应焓.并计算得出混配合物的标准摩尔生成焓,△_1H_(?)^(?)[La(Glu)(Ala)Cl_3.2H_2O.s.298.2k]=-3295.12kJ.mol^1。The complexes of amino-acid with La has been synthesized, the composition of the complexes was determined by infrared spectra, chemical analysis thermo-gravimetric analysis and the molar dissolution enthalpy of the reacts and products was determined in 2mol. L 1 HCl at 298. 2k. According to the thermochimica principle, enthalpy of the coordination reaction has been determined, the standard formation enthalpy of complexes was calculated: ΔfHmn [La ( Glu ) ( Ala) Cl3. 2H2O, s. 29:8. 2k]=-.3295. 12kJ. mol

关 键 词：镧 氨基酸 热化学 溶解量热法 稀土元素 药物研究 

分 类 号：R914[医药卫生—药物化学]