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Thermal- and photo-induced spin crossover in the 1D coordination polymer [Fe(4-tBupy)3][Au(CN)2]2 (4-tBupy = 4-tert-butylpyridine)

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Thermal- and photo-induced spin crossover in the 1D coordination polymer [Fe(4-tBupy)3][Au(CN)2]2 (4-tBupy = 4-tert-butylpyridine)

dc.contributor.author	García López, Víctor
dc.contributor.author	Clemente León, Miguel
dc.contributor.author	Coronado Miralles, Eugenio
dc.date.accessioned	2021-05-28T13:28:33Z
dc.date.available	2021-05-28T13:28:33Z
dc.date.issued	2021
dc.identifier.uri	https://hdl.handle.net/10550/79482
dc.description.abstract	Reaction of the unidentate pyridine ligand containing a bulky t-butyl substituent with Fe2+ and [Au(CN)2]− affords a new type of spin crossover (SCO) coordination polymer in the 1D compound [Fe(4-tBupy)3][Au(CN)2]2⋅0.5H2O (1), which is formed by chains of Fe(II) complexes linked through bridging [Au(CN)2]− with three terminal 4-tBupy and one monodentate [Au(CN)2]− ligands completing the octahedral coordination around Fe(II). Longer reaction times led to the minor products [Fe(4-tBupy)2][Au(CN)2]2 (2), which presents a 2D structure more similar to that found in the other SCO compounds based on [Au(CN)2]−, and the 1D compound [Fe(4-tBupy)2(MeOH)][Au(CN)2]2 (3), in which one of the three terminal 4-tBupy found in 1 is replaced by a coordinating MeOH molecule. Magnetic measurements of 1 show an abrupt spin transition with the temperature with hysteresis and light-induced excited spin-state trapping effect. Structural analysis of 2 and 3 indicates that Fe(II) remains in the high-spin state in these compounds.
dc.language.iso	eng
dc.relation.ispartof	Journal of Applied Physics, 2021, vol. 129, p. 123903
dc.rights.uri	info:eu-repo/semantics/openAccess
dc.source	García López, Víctor Clemente León, Miguel Coronado Miralles, Eugenio 2021 Thermal- and photo-induced spin crossover in the 1D coordination polymer [Fe(4-tBupy)3][Au(CN)2]2 (4-tBupy = 4-tert-butylpyridine) Journal of Applied Physics 129 123903
dc.subject	Materials
dc.subject	Compostos de coordinació
dc.subject	Física de l'estat sòlid
dc.title	Thermal- and photo-induced spin crossover in the 1D coordination polymer [Fe(4-tBupy)3][Au(CN)2]2 (4-tBupy = 4-tert-butylpyridine)
dc.type	info:eu-repo/semantics/article
dc.date.updated	2021-05-28T13:28:34Z
dc.identifier.doi	https://doi.org/10.1063/5.0046998
dc.identifier.idgrec	144475