Effect of Ionic Strength, Aquo-Organic Solvents, and Temperature on the Stabilities of N-[Tris(hydroxymethyl)methyl]glycine + Metal Complexes
Effect of Ionic Strength, Aquo-Organic Solvents, and Temperature on the Stabilities of N-[Tris(hydroxymethyl)methyl]glycine + Metal Complexes
复制标题
离子强度、水有机溶剂和温度对 N-[三(羟甲基)甲基]甘氨酸金属配合物稳定性的影响
DOI：
10.1021/je030228c
复制
发表时间：
2004
影响因子：
--
通讯作者：
S. A. Abdel‐Latif
中科院分区：
文献类型：
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作者：
O. M. El‐Roudi;S. A. Abdel‐Latif
在(0.0 2，0.0 5，0.10和0.15)mol dm-3 KNO3存在下，在(60，65和75)体积%丙酮、75%乙醇和75%二氧六环存在下，在2 5°C，研究了n-[(三羟甲基)甲基]甘氨酸与过渡金属离子Co2+、Ni2+、Cu2+和Zn2+的络合物的稳定常数.在(5，15，25，35，45)℃，0.1moldm-3KNO3存在下。通过测定得到了Tricine和Tricine+M(II)[式中M(II)=Co2+、Ni2+、Cu2+和Zn2+]的热力学稳定常数。
The stability constants of complexes ofN-[(tris-hydroxymethyl)methyl]glycine (Tricine) with the transition metal ions Co 2+ , Ni 2+ , Cu 2+ , and Zn 2+ were studied potentiometrically in the presence of (0.02, 0.05, 0.10, and 0.15) mol dm -3 KNO 3 ; in the presence of (60, 65, and 75) vol % acetone, 75 vol % ethanol, and 75 vol % dioxane at 0.05 mol dm -3 KNO 3 at 25 °C; and at (5, 15, 25, 35, 45) °C in the presence of 0.1 mol dm -3 KNO 3 . The thermodynamic stability constants for tricine and for tricine + M(II) [where M(II) = Co 2+ , Ni 2+ , Cu 2+ , and Zn 2+ ) have been obtained from the measurements.