Thermodynamics of I, I 0-Phenanthrolium Ion and its lron(II) Complexes in Methanol-Water Mixtures at 298°K
| Main Authors: | G. BISWAS, S. ADITYA, (Mrs.) A. BHATTACHARYYA, S.C. LAHIRI |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1977
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6421383 |
Daftar Isi:
- Department of Applied Chemistry, University College qf Science and Technology, 92, Acharya Prafulla Chandra Road, Calcutta-9 Department of Chemistry, Kalyani University, Kalyani, Nadia (India) Manuscript received 29 January 1977, accepted 4 July 1977 The equilibrium constants of tbe "Isoelectrlc" reactions of the type PhH+ \(\rightleftharpoons\) Ph + H+ \(FePh_{3}^2\)+ + 3H+ \(\rightleftharpoons\) Fe2+ + 3PH+ \(FePh_{3}^2\)+ \(\rightleftharpoons\) Fe2+ + 3Ph, have been determined pH-metrically and spectrophotometrically in methanol-water mixtures In 8-87 wt % in methanol. The enthalpies (consequently entropies) of ionizatoins have also been determined calorimetrically at 298°K. The Inadequacies of electro static theories in explaining tbe thermodynamic parameters t.ave been stressed. The importance of Ionic salvation and structural contributions, though not well-understood, have been discussed.