J
Jean-François Létard
Researcher at University of Bordeaux
Publications - 181
Citations - 8380
Jean-François Létard is an academic researcher from University of Bordeaux. The author has contributed to research in topics: Spin crossover & LIESST. The author has an hindex of 47, co-authored 174 publications receiving 7809 citations. Previous affiliations of Jean-François Létard include University of Valencia & Ludwig Maximilian University of Munich.
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Journal ArticleDOI
Spin-transition in [FeII(L5)2][ClO4]2 [L5 = 2-[3-(2′-pyridyl)pyrazol-1-ylmethyl](1-methylimidazole)]: a further example of coexistence of features typical for disorder and cooperativity
Vibha Mishra,Vibha Mishra,Haritosh Mishra,Haritosh Mishra,Rabindra Nath Mukherjee,Epiphane Codjovi,Jorge Linares,Jean-François Létard,Cédric Desplanches,Chérif Baldé,Cristian Enachescu,François Varret +11 more
TL;DR: The complete photo-magnetic data were modelled using a non-cooperative master equation including a tunnelling process with distributed parameters and accounting for the bulk absorption of light, and the obtained features with respect to structural properties, including the suggested presence of disorder.
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Photoinduced phenomena and structural analysis associated with the spin-state switching in the [FeII(DPEA)(NCS)2] complex
D. Glijer,Johan Hebert,Elzbieta Trzop,Eric Collet,Loïc Toupet,Hervé Cailleau,Galina S. Matouzenko,H. Z. Lazar,Jean-François Létard,Shin-ya Koshihara,M. Buron-Le Cointe +10 more
TL;DR: In this paper, the photo-induced switching from the low-spin to the high-spin state has been investigated on the iron(II) complex by both optical reflectivity and magnetic measurements under continuous light irradiation at low temperature.
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Optical and magnetic properties of the photo-induced state in the coordination network Na2Co4[Fe(CN)6]3.3·14H2O
Rémy Le Bris,Rémy Le Bris,Jean-Daniel Cafun,Corine Mathonière,Corine Mathonière,Anne Bleuzen,Jean-François Létard,Jean-François Létard +7 more
TL;DR: In this article, the authors used reflectivity and magnetic measurements to obtain the metastable state of Na2Co4[Fe(CN)6]3.3·14H2O.
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Light-Induced Excited Spin-State Properties in 1D Iron(II) Chain Compounds
Chérif Baldé,Chérif Baldé,Wolfgang Bauer,Eike Kaps,Suzanne M. Neville,Cédric Desplanches,Guillaume Chastanet,Birgit Weber,Jean-François Létard +8 more
TL;DR: In this article, three iron(II) 1D coordination polymers with the general formula [FeLeq(Lax)]*solvent with Leq = {3,3′-[1,2-phenylenebis(iminomethylidyne)]bis(2,4-pentanedionato)(2-)-N,N′, O2,O2′; Lax = 4,4′-bipyridine (bipy, 1), 1,2)-bis(4-pyridyl)ethane (
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Third-Order Nonlinear Optical Properties in the Excited State of Well-Defined Thiophene−Dimethylsilyl Co-oligomers
Carole Moreau,Françoise Serein-Spirau,Jean-François Létard,René Lapouyade,Gédimas Jonusauskas,Claude Rullière +5 more
TL;DR: In this paper, a series of oligomers for nonlinear optics (NLO), the thiophene−dimethylsilyl co-oligomers, (TSi)n−T with n = 1−3, have been synthesized in order to combine third-order NLO response and transparency in the visible region.