Photoinduced phenomena and structural analysis associated with the spin-state switching in the [FeII(DPEA)(NCS)2] complex
KOSHIHARA, Shin-Ya
Non-equilibrium Dynamics Project [ERATO]
Division of Chemistry, Graduate School of Sciences
< Réduire
Non-equilibrium Dynamics Project [ERATO]
Division of Chemistry, Graduate School of Sciences
Langue
en
Article de revue
Ce document a été publié dans
Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2008, vol. 78, n° 13, p. 134112 (9 p.)
American Physical Society
Résumé en anglais
Out-of-equilibrium photoinduced switching from the low-spin to the high-spin state has been investigated on the iron(II) complex [Fe(II)(DPEA)(NCS)2] by both optical reflectivity and magnetic measurements under continuous ...Lire la suite >
Out-of-equilibrium photoinduced switching from the low-spin to the high-spin state has been investigated on the iron(II) complex [Fe(II)(DPEA)(NCS)2] by both optical reflectivity and magnetic measurements under continuous light irradiation at low temperature. The photoinduced HS state can be observed up to 47 K and the relaxation process has been followed. Structural changes of both the temperature- and the photoinduced spin-state switching have been analyzed in detail by x-ray diffraction indicating no change of symmetry. Short intermolecular contacts and intramolecular deformations associated with the change of molecular spin state have been quantified. Actually a crossover behavior is observed at thermal equilibrium with however a quasiabrupt shape indicating significant cooperative effects. These aspects are compared between the temperature- and photoinduced spin crossovers.< Réduire
Mots clés en anglais
Reflectivity
X-ray diffraction
Magnetic relaxation
Organic compounds
Iron compounds
Crystal structure
Projet Européen
NOE MAGMANet 515767-2, MRTN-CT-2003-503641
Origine
Importé de halUnités de recherche