| 赖氨酸铜稳定常数的测定及优化计算 |
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| 引用本文： | 杨云裳,关晓,张应鹏,陈宇涛.赖氨酸铜稳定常数的测定及优化计算[J].安徽农业科学,2010,38(27):15423-15425. |
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| 作者姓名： | 杨云裳 关晓 张应鹏 陈宇涛 |
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| 作者单位： | 兰州理工大学石油化工学院,甘肃兰州,730050 |
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| 摘 要： | 采用pH电位滴定法测定了铜离子与赖氨酸配合物在离子强度为0．1mol／L（NaCl）、温度为25℃时的pH值变化，用半整数作图法得出配合物的稳定常数为：1gK；=10．6，1gK：=8．5，1gK，=2．1。并运用量子化学密度泛函理论对产物的几何构型进行了优化，同时计算得到了热分解反应的标准热力学量变。
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| 关 键 词： | 赖氨酸 金属配合物 pH电位滴定 稳定常数 量子化学计算 |
Determination and Quantizing Calculation of Stability Constant of Cu-lysine |
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| YANG Yun-shang et al.Determination and Quantizing Calculation of Stability Constant of Cu-lysine[J].Journal of Anhui Agricultural Sciences,2010,38(27):15423-15425. |
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| Authors: | YANG Yun-shang |
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| Institution: | YANG Yun-shang et al(College of Petrochemical Processing,Lanzhou University of Technology,Lanzhou,Gansu 730050) |
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| Abstract: | The change of pH value of Cu2+-lysine complex solution with ionic strength at 0.1 mol/L(NaCl)and temperature at 25 ℃ was determined by using pH electric titration.The stability constants of the complex were obtained by using half-integer graphing method as follows:lgK1=10.6,lgK2=8.5 and lgK3=2.1 resp.The geometric configuration of product was optimized by applying quantum chemical density functional theory and the standard thermodynamics quantitative change of thermal decomposition reaction was calculated out simultaneously. |
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| Keywords: | Lysine Metal complex pH electric titration Stability constant Quantum chemical calculation |
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