Solid state photoinduced transformation

Study of out-of-equilibrium states (photoinduced) and different types of transformations in crystals and condensed matter

Solid State Photoinduced Transformations

We investigate ground-state, thermal-equilibrium states and out-of-equilibrium states (photoinduced) and different types of transformations in crystals and condensed matter, by combining visible optical spectroscopy and advanced crystallography. We study various systems undergoing both thermally-induced and photoinduced transformation and coordination complexes, such as spin-crossover compounds, charge-transfer complexes, Prussian blue analogues or ruthenium compounds with nitrosyl ligands. Advanced structural studies allow characterizing, at the atomic scale, the different phases of the crystalline samples and the complex ordering phenomena and structural reorganization at the intra-and inter-molecular levels, especially in the photoinduced state. Our studies are performed both at thermal equilibrium and under light irradiation by using photocrystallography, possibly at low temperatures and/or high pressure. We pay a special attention to the symmetry-breaking analysis, if any, and provide deep analysis during multi-step processes as well as on the transformation rate that we try to optimize playing on the experimental conditions (laser wavelength, laser polarization, sample shape, …). The objective is first to understand and then to control by light the physical properties of the materials such as magnetism, conductivity, colour...


Shin-ichi Ohkoshi, Hiroko Tokoro, Seiji Miyashita, Koichiro Tanaka, LIA IM-LED, Japan
Isabelle Malfant, LCC Toulouse, France
Grace Morgan, Dublin, Irland
Jose-Antonio Real, Spain

Références récentes

Giant Magnetoelectric Coupling and Magnetic-Field-Induced Permanent Switching in a Spin Crossover Mn(III) Complex
V. B. Jakobsen, S. Chikara, J.-X. Yu, E. Dobbelaar, C. T. Kelly, X. Ding, F. Weickert, E. Trzop, E. Collet, H.-P. Cheng, G. G. Morgan, V. S. Zapf
Inorganic Chemistry, American Chemical Society, (2021)

Photoswitchable 11 nm CsCoFe Prussian Blue Analogue Nanocrystals with High Relaxation Temperature
L. Trinh, S. Zerdane, S. Mazerat, N. Dia, D. Dragoe, C. Herrero, E. Rivière, L. Catala, M. Cammarata, E. Collet, T. Mallah
Inorganic Chemistry, American Chemical Society, 2020, 59 (18), pp.13153-13161.

Study of transfer of alcohol (methanol, ethanol, isopropanol) during nanofiltration in water/alcohol mixtures
T. Nguyen, L. Paugam, P. Rabiller, M. Rabiller-Baudry
Journal of Membrane Science, Elsevier, 2020, 601, pp.117907.

Symmetry breakings in a metal organic framework with a confined guest
C. Mariette, E. Trzop, J.-Y. Mevellec, A. Boucekkine, A. Ghoufi, G. Maurin, E. Collet, M. C. Muñoz, J. A. Real, B. Toudic
Physical Review B, American Physical Society, 2020, 101 (13),

Structurefunction relationships for thermal and light-induced spin-crossover in isomorphous molecular materials
R. Kulmaczewski, E. Trzop, E. Collet, S. Vela, M. A. Halcrow
Journal of Materials Chemistry C, Royal Society of Chemistry, 2020, 8 (25), pp.8420-8429.

Nitro End Groups Remarkable Vibrational Reporters for Charge Transfer in the Excited States of Oligo(p-phenyleneethynylene)-Bridged Donor-Acceptor Dyads
J. Kubicki, M. Lorenc, P. Cochelin, O. Mongin, A. Amar, A. Boucekkine, A. Gaje, M. Humphrey, M. Morshedi, S. Lorenzen, F. Rauch, C. Scheufler, T. Marder, F. Paul
Journal of Physical Chemistry C, American Chemical Society, 2020, 124 (18), pp.9755-9764.

Stress‐induced Domain Wall Motion in a Ferroelastic Mn3+ Spin Crossover Complex
V. Jakobsen, E. Trzop, L. Gavin, E. Dobbelaar, S. Chikara, X. Ding, K. Esien, H. Müller-Bunz, S. Felton, V. Zapf, E. Collet, M. Carpenter, G. G. Morgan
Angewandte Chemie International Edition, Wiley-VCH Verlag, 2020, 59 (32), pp.13305-13312.

Hysteresis Photomodulation via Single-Crystal-to-Single-Crystal Isomerization of a Photochromic Chain of Dysprosium Single-Molecule Magnets
M. Hojorat, H. Al Sabea, L. Norel, K. Bernot, T. Roisnel, F. Gendron, B. Le Guennic, E. Trzop, E. Collet, J. Long, S. Rigaut
Journal of the American Chemical Society, American Chemical Society, 2020, 142 (2), pp.931-936.

Healing of cracks by green laser irradiation in a nanogold particles glass matrix composite
J. Moriceau, P. Houizot, M. Lorenc, T. Rouxel
Journal of Non-Crystalline Solids, Elsevier, 2019, 503-504, pp.115-119.

Tetranuclear [Fe II 2 Fe III 2 ] 2+ molecular switches [Fe II (bik) 2 (N–) 2 ]spin-crossover complexes containing [Fe III (Tp)(CN) 3 ] – metalloligands as N-donor
D. Garnier, A. Mondal, Y. Li, P. Herson, L.-M. Chamoreau, L. Toupet, M. Buron-Le Cointe, E. Moos, F. Breher, R. Lescouezec
Comptes Rendus Chimie, Elsevier Masson, 2019, 22 (6-7), pp.516-524.

Lattice phonon modes of the spin crossover crystal [Fe(phen)2(NCS)2] studied by THz, IR, Raman spectroscopies and DFT calculations
E. Collet, G. Azzolina, T. Ichii, L. Guérin, R. Bertoni, A. Moréac, M. Cammarata, N. Daro, G. Chastanet, J. Kubicki, K. Tanaka, S. Matar
European Physical Journal B: Condensed Matter and Complex Systems, Springer-Verlag, 2019, 92 (1), pp.12.

The first observation of hidden hysteresis in an iron(III) spin-crossover complex

T. Boonprab, S. Lee, S. Telfer, K. Murray, W. Phonsri, G. Chastanet, E. Collet, E. Trzop, G. Jameson, P. Harding, D. Harding
Angewandte Chemie International Edition, Wiley-VCH Verlag, 2019, 58 (34), pp.11811-11815.

Spin Crossover Behavior in a Homologous Series of Iron(II) Complexes Based on Functionalized Bipyridyl Ligands
S. Xue, Y. Guo, A. Rotaru, H. Mueller-Bunz, G. G. Morgan, E. Trzop, E. Collet, J. Olah, Y. Garcia
Inorganic Chemistry, American Chemical Society, 2018, 57 (16), pp.9880-9891.

Decoupling anion-ordering and spin-Peierls transitions in a strongly one-dimensional organic conductor with a chessboard structure, (o-Me2TTF)(2)NO3
O. Jeannin, E. W. Reinheimer, P. Foury-Leylekian, J.-P. Pouget, P. Auban-Senzier, E. Trzop, E. Collet, M. Fourmigué
International Union of Crystallography journal, International Union of Crystallography 2018, 5 (3), pp.361-372.

Solvatomorphism‐induced 45 K hysteresis width in a spin‐crossover mononuclear compound
A. Djemel, O. Stefánczyk, M. Marchivie, E. Trzop, E. Collet, C. Desplanches, R. Delimi, G. Chastanet
Chemistry - A European Journal, Wiley-VCH Verlag, 2018, 24 (55), pp.14760-14767.
Études structurales des matériaux à conversion de spin : de la molécule aux matériaux
E. Collet, P. Guionneau
Structural analysis of spin-crossover materials: From molecules to materials. Comptes Rendus Chimie, Elsevier Masson, 2018, 21 (12), pp.1133-1151.
Increasing spin crossover cooperativity in 2D Hofmann-type materials with guest molecule removal
K. A. Zenere, S. Duyker, E. Trzop, E. Collet, B. Chan, P. W. Doheny, C. J. Kepert, S. M. Neville
Chemical Science , The Royal Society of Chemistry, 2018, 9 (25), pp.5623-5629.
Back to the Structural and Dynamical Properties of Neutral-Ionic Phase Transitions
M. Buron-Le Cointe, E. Collet, B. Toudic, P. Czarnecki, H. Cailleau
Crystals, MDPI, 2017, 7 (10),
The role of symmetry breaking in the structural trapping of light-induced excited spin states
R. Kulmaczewski, E. Trzop, L. J. Kershaw Cook, E. Collet, G. Chastanet, M. A. Halcrow
Chemical Communications, Royal Society of Chemistry, 2017, 53 (99), pp.13268-13271.
Formation of local spin-state concentration waves during the relaxation from photoinduced state in a spin-crossover polymer
C. Mariette, E. Trzop, S. Zerdane, P. Fertey, D. Zhang, F. Valverde-Muñoz, J.-A. Real, E. Collet
Acta crystallographica Section B: Structural crystallography and crystal chemistry, International Union of Crystallography, 2017, 73 (4), pp.660-668.

Competing phases involving spin-state and ligand structural orderings in a multistable two-dimensional spin crossover coordination polymer
D.-P. Zhang, E. Trzop, F. J. Valverde-Muñoz, L. Piñeiro-López, M. Carmen M.uñoz, E. Collet, J. Real
Crystal Growth & Design, American Chemical Society, 2017, 17 (5), pp.2736-2745.

Two-Step Photon Absorption Driving the Chemical Reaction in the Model Ruthenium Nitrosyl System [Ru(py)4Cl(NO)](PF6)2·1/2H2O
L. Khadeeva, W. Kaszub, M. Lorenc, I. Malfant, M. Buron-Le Cointe,
Inorganic Chemistry, American Chemical Society, 2016, 55 (9), pp.4117-4123 - doi:10.1021/acs.inorgchem.5b02572

Ordering phenomena of high-spin/low-spin states in stepwise spin-crossover materials described by the ANNNI model
H. Watanabe, K. Tanaka, N. Bréfuel, H. Cailleau, J.-F. Létard, S. Ravy, P. Fertey, M. Nishino, S. Miyashita, E. Collet,
Phys. Rev. B, 2016, 93 (1), pp.014419 - doi:10.1103/PhysRevB.93.014419

Inside Thermal Hysteresis studied by x-ray diffraction Current
E. Collet, L. Henry, L. Piñeiro-López, L. Toupet, J.A. Real Single Laser Shot Spin State Switching of {Fe II (pz)[Pt(CN) 4 ]}
Inorganic Chemistry, 2016, 6, pp.61 - doi:10.2174/1877944105666150910233704

Electronic vs. structural ordering in a manganese(III) spin crossover complex Chemical Communications
A. Anthony J. Fitzpatrick, E. Trzop, H. Müller-Bunz, M. M. Dîrtu, Y. Garcia, E. Collet, G. G. Morgan ,
Royal Society of Chemistry, 2015, 51 (99), pp.17540-17543 - doi:10.1039/c5cc05129k