of a solid crystalline phase at a certain temperature and pressure (the inversion point
) to another phase of the same chemical composition with a different crystal structure.
In a liquid-crystal transition, this term refers to phase changes in the smectic state
or columnar discotic state.
The transitions of
(tridymite-type), and at
The transition of
(wurtzite-type structure) to
(body-centred-cubic structure) at
Synonymous with enantiotropic transition.
PAC, 1994, 66, 577
(Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994))
on page 588
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook