硝酸锌与三种氨基酸配合行为的相化学研究  

Study on Phase Chemistry of Coordination Behavior of Zinc Nitrate with Three Amino Acids

作　　者：高胜利[1] 侯育冬[1] 刘建睿[1] 冀棉[1] 陈三平[1] 

机构地区：[1]西北大学化学系,西安710069

出　　处：《化学学报》2000年第1期65-70,共6页Acta Chimica Sinica

基　　金：国家自然科学基金(29871023)资助项目

摘　　要：用半微量相平衡法研究了Zn(NO_3)_2-His/Met/Phe-H_2O在25℃及全浓度范围内的溶度性质,构置了体系的溶度图及饱和溶液的折光指数-组成图,发现并制备了未见文献报道的固液同组成三元化合物Zn(His)(NO_3)_2·(1/2)H_2O与Zn(Met)(NO_3)_2·(1/2)H_2O和固液异组成三元化合物Zn(Met)_3(NO_3)_2·H_2O,Zn(Phe)(NO_3)_2·H_2O与Zn(Phe)_3(NO_3)_2·H_2O.通过化学分析、元素分析、IR光谱、X射线粉末衍射、TG-DTG等对其组成、结构及热稳定性进行了研究.The solubility properties of the Zn(NO3)2 - His/Met/Phe - H2O systems at 25℃ in the whole concentration ranges have been investigated by semimicro phase equilibrium method. The corresponding equilibrium diagrams and refractive index diagrams were constructed. The congruently soluble compounds of Zn(His)(NO3)2 (l/2)H2O and Zn(Met)(NO3)2 (1/2)H2O and incogruently soluble compounds ofZn(Met)3(NO3)2·H2O,Zn(Phe)(NO3)2·H2O and Zn(Phe)3(NO3)2·H2O, which have not been reported in the literature are discovered and synthesized. These compounds are charactered by IR spectroscopy, X - ray diffraction, TG-DTG, as well as chemical and elemental analyses.

关 键 词：硝酸锌 L-Α-氨基酸 相平衡 三元体系 氨基酸锌 

分 类 号：O642[理学—物理化学]