Citation: Tuba SISMANOGLU. Thermodynamics of Stability Constant of Binary Complex of Nicotinamide with Mn⁺⁺[J]. Chinese Chemical Letters, ;2003, 14(11): 1207-1210. shu

Thermodynamics of Stability Constant of Binary Complex of Nicotinamide with Mn⁺⁺

Tuba SISMANOGLU

Istanbul University, Engineering Faculty Department of Chemistry, 34850, Avcilar-Istanbul, Turkey

Received Date: 14 November 2002

Fund Project: This work was supported by the Research Fund of the University of Istanbul, project number B-612/17072000.

The stability constants of the binary complexes of Mn²⁺ with nicotinamide (NA) were determined from potentiometric pH titrations data at 15.0, 25.0 and 35.0℃ and I=0.1,0.2,0.4 mol L^-1 (NaClO₄). The formation of binary 1:1, 1:2 NA-Mn complexes at three different temperatures and the influence of three different ionic strength on their stability were reported. The thermodynamic parameters (△G_f^o, △S_f^o, △H_f^o) for the complex formation reaction were estimated from stability constant at different temperatures.
- Nicotinamide,
- stability constant,
- binary complexes
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