Citation: Jian Hong BI, Fu Xin XIE, Li Qin CHEN, Shi Sheng NI. The Rmodynamic Study on the Aqueous Complexation of Metal Cations with N-acetic Acid Substituted Tetraazamacrocycle[J]. Chinese Chemical Letters, ;1996, 7(9): 862-863. shu

The Rmodynamic Study on the Aqueous Complexation of Metal Cations with N-acetic Acid Substituted Tetraazamacrocycle

a Dept, of Chem,, Anhui Institute of Education, Hefei 230061;
b Dept, of Chem, Anhui University, Hefei 230039

Received Date: 22 April 1996

Fund Project: The project was supported by the National Natural Science Foundation of China.

The stability constants of the 1:1 complexes of H₄L (5.12-diphenyl-7, 14-dimethyl-1, 4, 8.11-tetraazamacroeyclotetradecane-N', N", N"', N""-tetraacetic acid) with M^2- ions (M=Cu, Ni, Co, Zn, Mn, Cd, Mg, Ca, Sr, Ba) were determined in 0.5 mol L KCl aqueous solution at 45℃, 50℃ and 60℃ by potentiometric titration and computer fitting. The △H and △S of the coordination reaction in the solution were given.
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