FERROMAGNETIC BEHAVIOR OF 1 2-TCNQ/TCNQ(-.) MIXED SALTS AT ROOM-TEMPERATURE/

Authors
SUGIMOTO T UEDA K ENDO S TOYOTA N KOHAMA M YAMAMOTO K MORIMOTO H YAMAGUCHI T SUENAGA Y MUNAKATA M HOSOITO N KANEHISA N SHIBAMOTO N KAI Y
Citation
T. Sugimoto et al., FERROMAGNETIC BEHAVIOR OF 1 2-TCNQ/TCNQ(-.) MIXED SALTS AT ROOM-TEMPERATURE/, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 305, 1997, pp. 217-226
Citations number
13
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
305
Year of publication
1997
Pages
217 - 226
Database
ISI
SICI code
1058-725X(1997)305:<217:FBO12M>2.0.ZU;2-L
Abstract
Ferromagnetic behavior at room temperature was observed in the tetrame thylammonium (NMe4+) and cesium (Cs+) salts of tetracyanoquinodimetfia ne (TCNQ) and its radical anion (TCNQ(-.)) in a molecular ratio of 1:2 . The saturation magnetizarions and coercive forces are 0.79 emu/mol a nd ca. 300 Oe for (NMe(4)(+.)TCNQ(-.))(.)1/2TCNQ, and 1.46 emu/mol and ca. 100 Oe for (Cs(+.)TCNQ(-.))(.)1/2TCNQ, respectively. In contrast, the 1:1 TCNQ/TCNQ(-.) mixed tetraethyammonium (NEt4+) salt, (NEt(4)(.)TCNQ(-.))(.)TCNQ, exhibited no ferromagnetic behavior at room temper ature and also at lower temperatures.