Physical properties of radical cation salts of the dimethylethylenedithiotetrathiafulvalene

• Published in: Solid state communications Vol. 58; no. 11; pp. 765 - 768
• Main Authors: Laversanne, R., Coulon, C., Amiell, J., Dupart, E., Delhaes, P., Morand, J.P., Manigand, C.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.06.1986; Elsevier
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electron paramagnetic resonance and relaxation; Exact sciences and technology; Free radicals; Magnetic resonances and relaxations in condensed matter, mössbauer effect; Physics; Electrical conductivity; Electron paramagnetic resonance; Organic compounds; Magnetic susceptibility
• ISSN: 0038-1098; 1879-2766
• DOI: 10.1016/0038-1098(86)90764-7

Electrical conductivity and ESR experiments on several new salts of the unsymmetrical molecule dimethylethylenedithiotetrathiafulvalene are described. According to the ESR results, the compounds can be classified in two groups labelled α and β. The α compounds present similar magnetic behavior with an increase of the spin susceptibility at low temperature. The properties of the β samples are reminiscent of those of the TMTTF salts exhibiting either a spin-Peierls or an antiferromagnetic ground state below 20 K.