Ionic compressibilities and ionic radii - systematic trends

Narayan, R.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/927

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DC Field	Value	Language
dc.contributor.author	Narayan, R.	-
dc.date.accessioned	2005-12-28T08:44:20Z	-
dc.date.available	2005-12-28T08:44:20Z	-
dc.date.issued	1979-11	-
dc.identifier.citation	Pramana, 1979, Vol. 13, p559-570.	en
dc.identifier.issn	0304-4289	-
dc.identifier.uri	http://hdl.handle.net/2289/927	-
dc.description.abstract	Ionic radii and compressibilities have been calculated for a. number of monovalent and divalent ions and radicals on the basis of the compressible ion theory. In this theory, the compression energy of an ion is given as a two-parameter function of its radius, A exp (-r/p), the radius and compressibility of the ion being monotonically decreasing functions of the compressing force acting on it. Choosing a standard force reflecting the average environment in- the alkali halides, univalent radii and compressibilities habe teen calculated. This is the first theory to estimate ionic corn- pressibilities. The values show systematic trends among groups of related ions. Anions are found to be significantly more compressible than cations (e.g., the compressibilities of Ca++, K+, C1- and S- - are respectively 0.8530, 1.342, 2.952 and 5.150 x 10-12 cm2/ dyne). Multivalent or ' crystal ' radii and compressibilities have also been calculated by scaling the standard force by the square of the ionic charge. The calculated ionic radii are closer to experimental values than the classical empirical radii.	en
dc.format.extent	460860 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Indian Academy of Sciences, Bangalore, India.	en
dc.rights	Indian Academy of Sciences, Bangalore, India.	en
dc.subject	Ionic crystal	en
dc.subject	Compressibility	en
dc.subject	Ionic radius	en
dc.title	Ionic compressibilities and ionic radii - systematic trends	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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