1988
DOI: 10.1139/v88-158
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Phase transitions in the organic semiconductor dipropylamine tetracyanoquinodimethane: DPA TCNQ2

Abstract: . Can. J. Chem. 66,938 (1988). Dipropylarnine tetracyanoquinodirnethane, DPA TCNQ2, is by stoichiometry a 1:2 organic salt giving rise to a f filled band quasi one dimensional electronic system. Conductivity measurements indicate the presence of at least three phase transitions. A dominant transition at 215 K shows simultaneous large discontinuities in both electric and magnetic properties. Infrared measurements suggest a structural change at 21 5 K related to conduction electron-molecular vibration interactio… Show more

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Cited by 4 publications
(7 citation statements)
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“…This coefficient is very small (about 3%) for the polarization perpendicular to the stacking a axis, confirming thus that TCNQ Ag modes Previously reported electrical and magnetic properties of these semiconductors (7,8) pointed to an unusual phase transition. which we termed an inverse s~i n -~e i e r l s transition.…”
Section: This Expression Requires the Detection Of All The Infrared Asupporting
confidence: 77%
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“…This coefficient is very small (about 3%) for the polarization perpendicular to the stacking a axis, confirming thus that TCNQ Ag modes Previously reported electrical and magnetic properties of these semiconductors (7,8) pointed to an unusual phase transition. which we termed an inverse s~i n -~e i e r l s transition.…”
Section: This Expression Requires the Detection Of All The Infrared Asupporting
confidence: 77%
“…Preparation and spectra Single crystals of the materials were prepared by methods described elsewhere (7). Chemical analysis showed 1:2 stoichiometry.…”
Section: Methodsmentioning
confidence: 99%
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