1 2-TCNQ/TCNQ(-CENTER-DOT) MIXED SALTS EXHIBITING FERROMAGNETIC BEHAVIOR AT ROOM-TEMPERATURE/

Authors
UEDA K SUGIMOTO T ENDO S TOYOTA N KOHAMA M YAMAMOTO K SUENAGA Y MORIMOTO H YAMAGUCHI T MUNAKATA M HOSOITO N KANEHISA N SHIBAMOTO Y KAI Y
Citation
K. Ueda et al., 1 2-TCNQ/TCNQ(-CENTER-DOT) MIXED SALTS EXHIBITING FERROMAGNETIC BEHAVIOR AT ROOM-TEMPERATURE/, Chemical physics letters, 261(3), 1996, pp. 295-300
Citations number
12
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
261
Issue
3
Year of publication
1996
Pages
295 - 300
Database
ISI
SICI code
0009-2614(1996)261:3<295:12MSEF>2.0.ZU;2-9
Abstract
Ferromagnetic behavior at room temperature was observed in the tetrame thylammonium (NMe(4)(+)) and cesium (Cs+) salts of tetracyanoquinodime thane (TCNQ) and its radical anion (TCNQ(-.)) in a molecular ratio of 1:2. The saturation magnetizations and coercive forces are 0.79 emu/mo l and approximate to 300 Oe for (NMe(4)(+) . TCNQ(-.)) . 1/2TCNQ, and 1.46 emu/mol and approximate to 100 Oe for (Cs+ . TCNQ(-.)) . 1/2TCNQ, respectively. In contrast, the 1:1 TCNQ/TCNQ(-.) mixed tetraethylammo nium (NEt(4)(+)) salt, (NEt(4)(+) . TCNQ(-.)) . TCNQ, exhibited no fe rromagnetic behavior at room temperature nor at lower temperatures.