White Light Snapshot of Non-Equilibrium High-Spin State in a Molecular Crystal

• Authors: W. Kaszub , E. Collet , H. Cailleau , M. Servol , M. Boillot , A. Tissot , M. Lorenc
• Languages of publication: EN

Abstracts

EN

The spin-crossover compound [(TPA)Fe(TCC)]PF_6 was experimentally investigated using time-resolved optical pump and supercontinuum probe technique. Changes of VIS optical density at thermal equilibrium of a crystal with different high-spin/low-spin fractions are compared to changes recorded picoseconds after femtosecond laser excitation. A white light snapshot of the high-spin state at 180 K is extracted from time-resolved spectra. Our results indicate that the temperature of the electronic state affects the absorption spectra of high- and low-spin states.

Keywords

EN

82.53.Xa; 78.47.D-; 42.70.Gi; 31.70.Ks

Discipline

• 31.70.Ks: Molecular solids
• 42.70.Gi: Light-sensitive materials
• 78.47.D-: Time resolved spectroscopy (>1 psec)
• 82.53.Xa: Femtosecond probes of molecules in solids and of molecular solids

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 2
• Pages: 324-327

Dates

published

2012-02

Contributors

author

W. Kaszub

• Institut de Physique de Rennes, UMR CNRS 6026, Université de Rennes 1, Campus Beaulieu, 35042 Rennes, France
• Quantum Electronics Laboratory, Faculty of Physics, Adam Mickiewicz University, 60-614 Poznań, Poland

author

E. Collet

• Institut de Physique de Rennes, UMR CNRS 6026, Université de Rennes 1, Campus Beaulieu, 35042 Rennes, France

author

H. Cailleau

• Institut de Physique de Rennes, UMR CNRS 6026, Université de Rennes 1, Campus Beaulieu, 35042 Rennes, France

author

M. Servol

• Institut de Physique de Rennes, UMR CNRS 6026, Université de Rennes 1, Campus Beaulieu, 35042 Rennes, France

author

M. Boillot

• Institut de Chimie Moleculaire et Matériaux d'Orsay, UMR CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France

author

A. Tissot

• Institut de Chimie Moleculaire et Matériaux d'Orsay, UMR CNRS 8182, Université Paris-Sud 11, 91405 Orsay, France

author

M. Lorenc

• Institut de Physique de Rennes, UMR CNRS 6026, Université de Rennes 1, Campus Beaulieu, 35042 Rennes, France

References

• [1] P. Gutlich, H.A. Goodwin, Spin Crossover in Transition Metal Compounds I - III, Springer, 2004
• [2] P. Gutlich, A. Hauser, Angew. Chem. Int. Ed. Engl. 33, 2024 (1994)
• [3] N. Moisan, M. Servol, M. Lorenc, A. Tissot, M.L. Boillot, H. Cailleau, S. Koshihara, E. Collet, C.R. Chimie 11, 1235 (2008)
• [4] M. Lorenc, J. Hébert, N. Moisan, E. Trzop, M. Servol, M. Buron, H. Cailleau, M.L. Boillot, E. Ponte, M. Wulff, S. Koshihara, E. Collet, Phys. Rev. Lett. 103, 028301 (2009)
• [5] E. Collet, M.L. Boillot, J. Hebert, N. Moisan, M. Servol, M. Lorenc, L. Toupet, M. Buron-le Cointe, A. Tissot, J. Sainton, Acta Crystallogr. B 65, 474 (2009)
• [6] R. Naskręcki, Femtosecond Transient Absorption Spectroscopy. Photophysical Study of the Excited States of Molecules and Short-Living Individuals, Wydawnictwo Naukowe UAM, Poznań 2000
• [7] A.J. Simaan, M.L. Boillot, R. Carrasco, J. Cano, J.-J. Girerd, T.A. Mattioli, J. Ensling, H. Spiering, P. Gütlich, Chem. Eur. J. 11, 1779 (2005)
• [8] A. Dei, D. Gatteschi, L. Pardi, Inorg. Chem. 32, 1389 (1993)
• [9] M. Ziółek, M. Lorenc, R. Naskręcki, Appl. Phys. B 72, 843 (2001)
• [10] H. Cailleau, M. Lorenc, L. Guérin, M. Servol, E. Collet, M. Buron-Le Cointe, Acta Crystallogr. A 66, 189 (2010)
• [11] T. Elsaesser, W. Kaiser, Ann. Rev. Phys. Chem. 42, 83 (1991)
• [12] Y. Zhang, J. Kubicki, M.S. Platz, J. Am. Chem. Soc. 131, 13602 (2009)
• [13] J.D. Leonard, J. Phys. Chem. A 105, 1724 (2001)

Identifiers

DOI

10.12693/APhysPolA.121.324