Abstract
Crystal structure, transport and magnetic properties of (EDS-TTF)2FeBr4 (EDS-TTF: ethylenediselenotetrathiafulvalene) are reported. Between one-dimensional columns of donors and quasi square-lattices of FeBr4 anions, close Br⋯Se van der Waals contacts and CH⋯Br type hydrogen bonds are observed. This salt shows high room-temperature conductivity and metal-insulator transition at ca. 250K (σRT = 400 S cm-1, EA = 380 K). The magnetic susceptibility obeys the Curie-Weiss law (C = 4.58 emu K mol-1, Θ = -0.9 K) without showing any magnetic transition down to 1.8 K. The weak π-d interaction can be due to the small contribution of Se 4p orbitals to the HOMO of EDS-TTF.
| Original language | English |
|---|---|
| Pages (from-to) | 543-545 |
| Number of pages | 3 |
| Journal | Synthetic Metals |
| Volume | 133-134 |
| DOIs | |
| State | Published - 2003/03/13 |
| Event | ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 2001/09/10 → 2001/09/14 |
Keywords
- Molecular conductor
- Molecular magnet
- TTF-type salts
- π-d interaction
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry