Three systems [Fe(III)(sal2-trien)](TCNQ)n·X (n = 1, 2, X = MeOH, CH3CN, H2O) showing spin-crossover transition, conductivity and ferromagnetic coupling were synthesized and studied by X-ray diffraction, Montgomery method for resistivity, SQUID magnetometry and X-band EPR. Spin-spin interactions between local magnetic moments of Fe(III) ions and electron spins of organic TCNQ network were discovered and discussed within the framework of intermolecular superexchange coupling.
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Shvachko, Y. N., Starichenko, D. V., Korolyov, A. V., Kotov, A. I., Buravov, L. I., Zverev, V. N., … Yagubskii, E. B. (2017). The highly conducting spin-crossover compound combining Fe(III) cation complex with TCNQ in a fractional reduction state. synthesis, structure, electric and magnetic properties. Magnetochemistry, 3(1). https://doi.org/10.3390/magnetochemistry3010009