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

Buisson, David H; Irving, Roger J

dc.contributor.author	Buisson, David H
dc.contributor.author	Irving, Roger J
dc.date.accessioned	2025-04-07T06:27:30Z
dc.date.available	2025-04-07T06:27:30Z
dc.date.issued	1977
dc.identifier.uri	http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/18557
dc.description.abstract	The 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.language.iso	en	en_US
dc.publisher	Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1977, 73 (1)	en_US
dc.subject	Chemistry	en_US
dc.subject	Spectrophotometry	en_US
dc.subject	ionisation	en_US
dc.subject	Journal of the Chemical Society : Faraday Transaction - I	en_US
dc.title	Spectrophotometric investigations in aqueous solution at elevated temperatures: Effect of temperature on the ionisation constant of the 2,2′ bipyridyl cation	en_US
dc.type	Article	en_US