Stabilities and Thermodynamics of Co+2, Ni+2, Cu+2 And Zn+2 Complexes of 2,5-Diamino-1-Pentanoic Acid

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Stabilities and Thermodynamics of Co+2, Ni+2, Cu+2 And Zn+2 Complexes of 2,5-Diamino-1-Pentanoic Acid

Devendra Agrawal*, Sharda Soni** and K. D. Gupta

Department of Chemistry, Malviya National Institute of Technology (Formerly MREC), Jaipur - 302 017 (India).

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ABSTRACT:

The stability constant of Co+2, Ni+2, Cu+2 and Zn+2 complexes of 2,5-diamino-1-pentanoic acid (DL-ornithine) have determined in aqueous medium at different temperature viz. 20°C, 30°C and 40°C and varying ionic strengths μ=0.05, 0.1 and 0.2M NaClO4 employing Irving-Rossotti method. The thermodynamic functions

KEYWORDS:

Metal ions; Thermodynamics stabilities; complexes