A
metal-insulator transition in quasi one-dimensional solids that occurs as a result of a band gap opening up
at the
Fermi energy due to a displacive distortion of the regular array increasing the
unit cell length, usually a
dimerization; the decrease in electronic energy outweighs the increase in lattice energy. Example:
The transition in methylethylmorpholinium tetracyanoquinodimethanide at
.
Source:
PAC, 1994, 66, 577
(Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations
1994))
on page 588
Cite as:
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.
https://doi.org/10.1351/goldbook.
