Abstract
We synthesized a novel organic radical, 3,4-dichlorophenyl nitronyl nitroxide and characterized magnetic properties in the solid state. An X-ray crystal structure analysis revealed that this molecule formed one-dimensional regular chains in the crystal. Temperature dependence of magnetic susceptibility was reproduced by the antiferromagnetic regular chain model with an exchange interaction J/kB = -8.0 K, which is consistent with the crystal structure. The radical crystal is an example of the regular spin chain in the organic systems that exhibits the largest exchange interaction. Single-crystal cw-ESR exhibited a temperature-dependent shift of g-value. The physical origin of the g-shift is discussed by comparing the observed data with theories describing the short range order effect in antiferromagnetic spin chains. The possibility of demagnetizing field effect on the g-shift in the paramagnetic crystal is also referred.
Original language | English |
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Pages (from-to) | 2267-2268 |
Number of pages | 2 |
Journal | Synthetic Metals |
Volume | 103 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 1999 Jun 24 |
Externally published | Yes |
Event | Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier Duration: 1998 Jul 12 → 1998 Jul 18 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry