Cu^(2+)-Lys螯合物的合成和表征  

Synthesis and characterization of Cu^(2+)-Lys chelate

作　　者：刘飞飞[1] 李群[1] 于岚[1] 

机构地区：[1]青岛大学化学化工与环境学院,山东青岛266071

出　　处：《应用化工》2009年第11期1631-1634,共4页Applied Chemical Industry

摘　　要：以L-赖氨酸盐酸盐和碱式碳酸铜为原料,按摩尔比为2∶0.5,在60℃水浴中搅拌反应2 h,得到产率为92.46%的赖氨酸铜螯合物。产品经纯化处理后,通过元素分析、红外光谱、紫外光谱、X射线粉末衍射、热重等分析手段进行了表征,确定了螯合物的组成为Cu[NH3Cl(CH2)4CHNH2COO]2.2H2O,同时也测得了螯合物的稳定常数K=3.23×105。Cu2＋ -Lys chelate was synthesized with L-lysine monohydrochloride and copper hydroxyearbon- ate as raw materials. The molar ratio of lysine to copper hydroxycarbonate was 2 ： 0.5 and the temperature was maintained 60 ℃ for 2 h. The yield of the complex was 92.46%. After purification, the composition and properties of the complex were characterized by a series of analysis methods, such as element analy- sis,infrared spectrum, ultraviolet spectrum, X-ray powder diffraction and thermogravimetric analysis. The composition of the copper lysinate chelate compound was confirmed to be Cu [ NH3CI （CH2 ）4- CHNH2COO]2 · 2H2O and stability constant was 3.23×10^5.

关 键 词：赖氨酸铜 合成 表征 

分 类 号：O629.71[理学—有机化学]