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A magic-angle spinning $^{31}P$ NMR investigation of crystalline and glassy inorganic phosphates

Prabhakar, S and Rao, KJ and Rao, CNR (1987) A magic-angle spinning $^{31}P$ NMR investigation of crystalline and glassy inorganic phosphates. In: Chemical Physics Letters, 139 (1). pp. 96-102.

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Abstract

$^{31}P$ NMR spectra of several inorganic phosphates were examined both in the crystalline and the glassy states. The parameter ${(Z_{eff} / r)}_q$ clearly demarcates ortho-, pyro-, and meta-phosphates in terms of the $^{31}P$ chemical shifts. Based on such a diagram, inorganic phosphate glasses consist essentially of metaphosphate units. NMR resonance of the glasses are generally much broader than those of crystalline phosphates.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science B.V.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Depositing User: Mr. Ramesh Chander
Date Deposited: 11 Mar 2008
Last Modified: 19 Sep 2010 04:43
URI: http://eprints.iisc.ac.in/id/eprint/13278

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