Abstract
This article reports on the study of the interplay between magnetic coupling and spin transition in 2,2′-bipyrimidine (bpym)-bridged iron(II) dinuclear compounds. Coexistence of both phenomena has been observed in [Fe(bpym)(NCS)2]2bpym, [Fe(bpym)(NCSe)2]2bpym and [Fe(bt)(NCS)2]2bpym (bpym = 2,2′-bipyrimidine, bt = 2,2′-bithiazoline) by the action of external physical factors namely pressure or electromagnetic radiation. Competition between magnetic exchange and spin crossover has been studied in [Fe(bpym)(NCS)2]2bpym at 6.3 kbar. LIESST experiments carried out in [Fe(bpym)(NCSe)2]2bpym and [Fe(bt)(NCS)2]2bpym at 4.2 K have shown that is possible to achieve dinuclear molecules with different spin states in this class of compounds.
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Gaspar, A.B., Ksenofontov, V., Spiering, H., Reiman, S., Real, J.A., Gütlich, P. (2003). Interplay of Antiferromagnetic Coupling and Spin Crossover in Dinuclear Iron(II) Complexes. In: Gütlich, P., Fitzsimmons, B.W., Rüffer, R., Spiering, H. (eds) Mössbauer Spectroscopy. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0045-1_30
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DOI: https://doi.org/10.1007/978-94-010-0045-1_30
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