High-spin to low-spin relaxation kinetics in the [Fe(TRIM)2]Cl2 complex
BONHOMMEAU, Sébastien
Laboratoire de chimie de coordination [LCC]
Laboratoire Physique des Solides de Toulouse
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Laboratoire de chimie de coordination [LCC]
Laboratoire Physique des Solides de Toulouse
BONHOMMEAU, Sébastien
Laboratoire de chimie de coordination [LCC]
Laboratoire Physique des Solides de Toulouse
Laboratoire de chimie de coordination [LCC]
Laboratoire Physique des Solides de Toulouse
SALMON, Lionel
Laboratoire Claude Fréjacques [LCF - URA 331]
Département de Recherche sur l'Etat Condensé, les Atomes et les Molécules [DRECAM]
< Leer menos
Laboratoire Claude Fréjacques [LCF - URA 331]
Département de Recherche sur l'Etat Condensé, les Atomes et les Molécules [DRECAM]
Idioma
en
Article de revue
Este ítem está publicado en
Physical Chemistry Chemical Physics. 2005, vol. vol. 7, n° 15, p. p. 2909-2914
Royal Society of Chemistry
Resumen en inglés
A quasi-quantitative photo-induced low-spin (LS) -> high-spin (HS) conversion of FeII ions has been observed in the [Fe(TRIM)2]Cl2 complex by irradiating the sample with blue light (488 nm) at 10 K. The time dependence of ...Leer más >
A quasi-quantitative photo-induced low-spin (LS) -> high-spin (HS) conversion of FeII ions has been observed in the [Fe(TRIM)2]Cl2 complex by irradiating the sample with blue light (488 nm) at 10 K. The time dependence of the HS -> LS relaxation has been studied between 10 K and 44 K by means of magnetic susceptibility measurements. These relaxation curves could be satisfactorily fitted by mono-exponential decays including tunnelling effect except for temperatures below 30 K. The introduction of a distribution of vibrational frequencies into this model improved significantly the fits in the low-temperature range and gave a good agreement with the experimental data in the whole temperature range suggesting a multi-rate relaxation process in this complex.< Leer menos
Palabras clave en inglés
[Fe(TRIM)2]Cl2
Relaxations
High spin
Low spin
Complex compounds
Orígen
Importado de HalCentros de investigación