Charge transfer complex between methylviologen and ferrocyanide |
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| Affiliation: | 1. College of Resources and Environment, Jilin Agricultural University, Changchun 130118, China;2. Key Laboratory of Straw Biology and Utilization, The Ministry of Education, Jilin Agricultural University, Changchun 130118, China;3. College of Chemistry, Jilin University, Changchun 130012, China |
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| Abstract: | Charge transfer complex between methylviologen and ferrocyanide has been studied spectrophotometrically at different temperatures. From the thermodynamic association constants (320 ± 30 M−1, 380 ± 30 M−1 and 460 ± 40 M−1 at 15, 25 and 30°C respectively), the enthalpy of formation, ΔH° (− 3.4 ± 1.5 kcal/mole), and the related entropy change, ΔS°(0.4 ± 5 e.u), have been calculated. The average extinction values of coefficients are 69±6 M−1 cm−1, 70±4 M−1 cm−1 and 72±5 M−1 cm−1 at 15, 25 and 35°C respectively. |
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