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...
Collaboration
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
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)
DOI : https://doi.org/10.1021/acs.inorgchem.0c02789
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.
DOI : https://doi.org/10.1021/acs.inorgchem.0c01432
T. Nguyen, L. Paugam, P. Rabiller, M. Rabiller-Baudry
Journal of Membrane Science, Elsevier, 2020, 601, pp.117907.
DOI : https://doi.org/10.1016/j.memsci.2020.117907
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),
DOI : https://doi.org/10.1103/PhysRevB.101.134103
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.
DOI : https://doi.org/10.1039/d0tc02174a
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.
DOI : https://doi.org/10.1021/acs.jpcc.0c01532
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.
DOI : https://doi.org/10.1002/anie.202003041
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.
DOI : https://doi.org/10.1021/jacs.9b10584
S.-I. Ohkoshi, H. Tokoro, E. Collet
Comptes Rendus Chimie, Elsevier Masson, 2019, 22 (6-7), pp.498-507.
DOI : https://doi.org/10.1016/j.crci.2019.05.002
J. Moriceau, P. Houizot, M. Lorenc, T. Rouxel
Journal of Non-Crystalline Solids, Elsevier, 2019, 503-504, pp.115-119.
DOI : https://doi.org/10.1016/j.jnoncrysol.2018.09.036
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.
DOI : https://doi.org/10.1016/j.crci.2019.04.003
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.
DOI : https://doi.org/10.1140/epjb/e2018-90553-2
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.
DOI : https://doi.org/10.1002/anie.201907619
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.
DOI : https://doi.org/10.1021/acs.inorgchem.8b00850
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.
DOI : https://doi.org/10.1107/S2052252518004967
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.
DOI : https://doi.org/10.1002/chem.201802572
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.
DOI : https://doi.org/10.1016/j.crci.2018.02.003
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.
DOI : https://doi.org/10.1039/c8sc01040d
M. Buron-Le Cointe, E. Collet, B. Toudic, P. Czarnecki, H. Cailleau
Crystals, MDPI, 2017, 7 (10),
DOI : https://doi.org/10.3390/cryst7100285
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.
DOI : https://doi.org/10.1039/c7cc07990g
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.
DOI : https://doi.org/10.1107/S2052520617007685
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.
DOI : https://doi.org/10.1021/acs.cgd.7b00218
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
