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Scientific article
English

Structural Investigation of the High Spin→Low Spin Relaxation Dynamics of the Porous Coordination Network [Fe(pz)Pt(CN)4]⋅2.6 H2O

Published inChemistry, vol. 21, no. 9, p. 3664-3670
Publication date2015
Abstract

The Hoffman-type coordination compound [Fe(pz)Pt(CN)4]⋅2.6 H2O (pz=pyrazine) shows a cooperative thermal spin transition at around 270 K. Synchrotron powder X-Ray diffraction studies reveal that a quantitative photoinduced conversion from the low-spin (LS) state into the high-spin (HS) state, based on the light-induced excited spin-state trapping effect, can be achieved at 10 K in a microcrystalline powder. Time-resolved measurements evidence that the HS→LS relaxation proceeds by a two-step mechanism: a random HS→LS conversion at the beginning of the relaxation is followed by a nucleation and growth process, which proceeds until a quantitative HS→LS transformation has been reached.

Keywords
  • Cooperative effects
  • LIESST
  • Organic electronics
  • Relaxation dynamics
  • Spin crossover
  • X-ray diffraction studies
Research group
Citation (ISO format)
DELGADO PEREZ, Maria Teresa et al. Structural Investigation of the High Spin→Low Spin Relaxation Dynamics of the Porous Coordination Network [Fe(pz)Pt(CN)<sub>4</sub>]⋅2.6 H<sub>2</sub>O. In: Chemistry, 2015, vol. 21, n° 9, p. 3664–3670. doi: 10.1002/chem.201405405
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ISSN of the journal0947-6539
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