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High-temperature photo-induced switching and pressure-induced transition in a cooperative molecular spin-crossover material

AuthorsCraig, G. A.; Sánchez Costa, J.; Roubeau, Olivier; Teat, Simon J.; Aromí, Guillem
Issue Date2014
PublisherRoyal Society of Chemistry (Great Britain)
CitationDalton Transactions 43(2): 729-737 (2014)
AbstractThe thermal and photo-induced switching properties of the recently published molecular spin crossover complex [Fe(H4L) 2](ClO4)2·H2O· 2(CH3)2CO (1) have been investigated in detail through Raman spectroscopy. Magnetometric and single crystal X-ray diffraction kinetic studies within the hysteresis loop have proven its metastable character, which allowed establishing the shape of the true, quasi-static hysteresis loop. This is related to the proximity of the temperatures of the thermal high to low spin SCO (T1/2↓) to those of the relaxation of the thermally or photo-generated metastable states (T(TIESST) and T(LIESST), respectively). Green light irradiation within the hysteresis loop results in a complete low to high spin photo-switch. In addition, the SCO of 1 at room temperature can be induced by applying pressure, as followed by Raman spectroscopy. © 2014 The Royal Society of Chemistry.
Descriptionet al.
Identifiersdoi: 10.1039/C3DT52075G
issn: 1477-9226
e-issn: 1477-9234
Appears in Collections:(ICMA) Artículos
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