Ferromagnetic behavioral room temperature was observed in the tetramethylammonium (NMe4+) and cesium (Cs+) salts of tetracyanoquinodimethane (TCNQ) and its radical anion (TCNQ-.) in a molecular ratio of 1:2. The saturation magnetizations and coercive forces are 0.79 emu/mol and ca. 300 Oe for (NMe4+·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, (NEt4+·TCNQ-.)·TCNQ, exhibited no ferromagnetic behavior at room temperature and also at lower temperatures.
|Number of pages||10|
|Journal||Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals|
|Publication status||Published - 1997 Jan 1|
ASJC Scopus subject areas
- Condensed Matter Physics