ISSN : 0970 - 020X, ONLINE ISSN : 2231-5039
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Study of Ni(II)-glycinamide complex formation by spectrophotometric method at various temperatures with pH=4.0 and I=0.2

Niloufar Tajdini1* and Ali Moghimi2

¹Department of Chemistry, Varamin(Pishva) Branch Islamic Azad University, Varamin, (Iran). ²Department of Chemistry, East Tehran(Ghiam Dasht) Branch Islamic Azad University, Tehran, (Iran).

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Article Published : 03 Sep 2010
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ABSTRACT:

The formation constants of Ni(II)-glycinamide system were determined in buffer solution, pH=4.0 (I=0.2 mol L-1 in NaClO4 at 10.0, 15.0, 20.0, 25.0, 30.0oC) using UV-Visible spectrophotometric method. The optical absorption spectra of Ni(II)-glycinamide system were analyzed in order to obtain formation constants and stoichiometries based on SQUAD software. Determining the formation constants at various temperatures enabled us to calculate some thermodynamic parameters as K, ∆Go , ∆Ho and ∆So related to the considered complexes.

KEYWORDS:

Glycinamide; SQUAD; Optical absorption; Formation constants; Thermodynamic parameters

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Tajdini N, Moghimi A. Study of Ni(II)-glycinamide complex formation by spectrophotometric method at various temperatures with pH=4.0 and I=0.2. Orient J Chem 2010;26(3).


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Tajdini N, Moghimi A. Study of Ni(II)-glycinamide complex formation by spectrophotometric method at various temperatures with pH=4.0 and I=0.2. Available from: http://www.orientjchem.org/?p=11581



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