Photomagnetic studies on spin-crossover solid solutions containing two different metal complexes, [Fe(1-bpp) sub(2)] sub(x)[M(terpy) sub(2)] sub(1-x)[BF sub(4)] sub(2) (M = Ru or Co)

The photomagnetic properties of two series of spin-crossover solid solutions, [Fe(1-bpp) sub(2)] sub(x)[Ru(terpy) sub(2)] sub(1-x)(BF sub(4)) sub(2) and [Fe(1-bpp) sub(2)] sub(x)[Co(terpy) sub(2)] sub(1-x)(BF sub(4)) sub(2) (1-bpp = 2,6-bis[pyrazol-1-yl]pyridine), have been investigated. For all the...

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Veröffentlicht in:Dalton transactions : an international journal of inorganic chemistry 2012-03, Vol.41 (16), p.4896-4902
Hauptverfasser: Chastanet, Guillaume, Tovee, Clare A, Hyett, Geoffrey, Halcrow, Malcolm A, Letard, Jean-Francois
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Sprache:eng
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Zusammenfassung:The photomagnetic properties of two series of spin-crossover solid solutions, [Fe(1-bpp) sub(2)] sub(x)[Ru(terpy) sub(2)] sub(1-x)(BF sub(4)) sub(2) and [Fe(1-bpp) sub(2)] sub(x)[Co(terpy) sub(2)] sub(1-x)(BF sub(4)) sub(2) (1-bpp = 2,6-bis[pyrazol-1-yl]pyridine), have been investigated. For all the materials, the evolution of the T(LIESST) value, the high-spin arrow right low-spin relaxation parameters and the LITH loops were thoroughly studied. Interestingly in the Fe : Co series, along the photo-excitation, cobalt ions are concomitantly converted from low-spin to high-spin states with the iron centres, and also fully relax after light excitation.
ISSN:1477-9226
1477-9234
DOI:10.1039/c2dt12122k