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Title

Structural Investigation of the High Spin→Low Spin Relaxation Dynamics of the Porous Coordination Network [Fe(pz)Pt(CN)4]⋅2.6 H2O
Authors
Delgado Perez, Maria Teresa
Tissot, Antoine Michel
Besnard, Céline
Guenee, Laure
Pattison, Philip
Hauser, Andreas
Published in Chemistry. 2015, vol. 21, no. 9, p. 3664-3670
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
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Structures
Faculté des sciences / Section de chimie et biochimie / Département de chimie physique
Research group Groupe Hauser
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)4]⋅2.6 H2O. In: Chemistry, 2015, vol. 21, n° 9, p. 3664-3670. doi: 10.1002/chem.201405405 https://archive-ouverte.unige.ch/unige:48201

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Deposited on : 2015-03-16

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