OBSERVATION OF SOLID-STATE PHASE-CHANGES IN ADAMANTANOLS USING C-13 CP-MAS NMR

Authors
SALMAN SR LINDON JC CARPENTER TA
Citation
Sr. Salman et al., OBSERVATION OF SOLID-STATE PHASE-CHANGES IN ADAMANTANOLS USING C-13 CP-MAS NMR, Thermochimica acta, 232(1), 1994, pp. 171-176
Citations number
8
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
232
Issue
1
Year of publication
1994
Pages
171 - 176
Database
ISI
SICI code
0040-6031(1994)232:1<171:OOSPIA>2.0.ZU;2-C
Abstract
Molecular motion in the solid state in adamantan-1-ol and adamantan-2- ol has been investigated using high resolution C-13 NMR spectroscopy w ith the CP-MAS technique. Adamantan-1-ol is shown to undergo an ordere d-disordered phase change at about 352 K, and adamantan-2-ol appears t o have two phase changes characterised by an increasing gain of local molecular symmetry on the NMR timescale as the temperature is increase d.