Spectrophotometric investigations in aqueous solution at elevated temperatures: Effect of temperature on the ionisation constant of the 2,2′ bipyridyl cation

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dc.contributor.authorBuisson, David H
dc.contributor.authorIrving, Roger J
dc.date.accessioned2025-04-07T06:27:30Z
dc.date.available2025-04-07T06:27:30Z
dc.date.issued1977
dc.description.abstractThe ionisation constant, Ka, of the 2,2′ bipyridyl cation has been determined at various temperatures between 298 and 473 K from spectrophotometric data. The results, expressed as a function of absolute temperature, are given by the equation pKa=(968.58/T)+ 0.735 53 + 0.001 131 1 T. The increase in ionisation with increasing temperature is attributed to increasing solvation of the hydronium ion relative to the 2,2′ bipyridyl cation. The changes of enthalpy, entropy and heat capacity for the ionisation reaction have been calculated from the temperature coefficients of the ionisation constant at each of the experimental temperatures.en_US
dc.identifier.urihttp://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/18557
dc.language.isoenen_US
dc.publisherJournal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1977, 73 (1)en_US
dc.subjectChemistryen_US
dc.subjectSpectrophotometryen_US
dc.subjectionisationen_US
dc.subjectJournal of the Chemical Society : Faraday Transaction - Ien_US
dc.titleSpectrophotometric investigations in aqueous solution at elevated temperatures: Effect of temperature on the ionisation constant of the 2,2′ bipyridyl cationen_US
dc.typeArticleen_US

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