Activation of coherent lattice phonon following ultrafast molecular spin-state photo-switching: A molecule-to-lattice energy transfer

Structural Dynamics
Andrea MarinoEric Collet

Abstract

We combine ultrafast optical spectroscopy with femtosecond X-ray absorption to study the photo-switching dynamics of the [Fe(PM-AzA)2(NCS)2] spin-crossover molecular solid. The light-induced excited spin-state trapping process switches the molecules from low spin to high spin (HS) states on the sub-picosecond timescale. The change of the electronic state (<50 fs) induces a structural reorganization of the molecule within 160 fs. This transformation is accompanied by coherent molecular vibrations in the HS potential and especially a rapidly damped Fe-ligand breathing mode. The time-resolved studies evidence a delayed activation of coherent optical phonons of the lattice surrounding the photoexcited molecules.

References

Oct 18, 1991·Science·R W SchoenleinC V Shank
Aug 30, 2003·Acta Crystallographica. Section B, Structural Science·Mathieu MarchivieDaniel Chasseau
Apr 16, 2004·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Goran Baranović, Darko Babić
Jan 8, 2005·Science·Matthieu CholletShin-Ya Koshihara
Jun 15, 2007·Journal of the American Chemical Society·Wojciech GaweldaMajed Chergui
Aug 8, 2009·Physical Review Letters·Cristian EnachescuAndreas Hauser
Sep 1, 2009·Angewandte Chemie·Cristina ConsaniMajed Chergui
Apr 7, 2010·Physical Review Letters·Michel van VeenendaalA J Fedro
Jan 17, 2012·Chemistry : a European Journal·Eric ColletMarylise Buron-Le Cointe
Jan 4, 2013·The Journal of Physical Chemistry. a·Henrik T LemkeMarco Cammarata
Jan 10, 2013·Annual Review of Physical Chemistry·Arnulf RosspeintnerEric Vauthey
Jan 30, 2015·Faraday Discussions·A MarinoE Collet
Apr 4, 2015·Nature Communications·Matteo LevantinoMarco Cammarata
May 2, 2015·Journal of Synchrotron Radiation·Matthieu CholletDavid M Fritz
Jul 24, 2015·Nature Chemistry·Gerald Auböck, Majed Chergui
Jan 23, 2016·Structural Dynamics·M LevantinoM Cammarata

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Citations

Nov 7, 2017·Chemistry : a European Journal·Serhane ZerdaneMarco Cammarata
Jul 4, 2018·Chemistry : a European Journal·Eric Collet, Marco Cammarata
Jan 30, 2018·Structural Dynamics·Rafael AbelaLuc Patthey
Apr 7, 2020·Nature Communications·Yifeng JiangR J Dwayne Miller
Nov 11, 2019·The Journal of Chemical Physics·S ZerdaneE Collet
Apr 21, 2021·Physical Chemistry Chemical Physics : PCCP·Kyle Barlow, J Olof Johansson

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Methods Mentioned

BETA
X-ray

Software Mentioned

LIESST
Gaussian

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