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
Discrete FeII Spin‐Crossover Complexes of 2,2′‐Dipyridylamino‐Substituted s‐Triazine Ligands with Phenoxo, Cyanophenoxo and Dibenzylamino Functionalities
Hayley S. Scott,Tamsyn Maree Ross,Wasinee Phonsri,Boujemaa Moubaraki,Guillaume Chastanet,Jean-François Létard,Stuart Robert Batten,Stuart Robert Batten,Keith S. Murray +8 more
TL;DR: In this paper, four 2,2′-dipyridylamino-s-triazine-substituted ligands, each of which incorporated different aromatic substituents (phenoxo, 4-CN-phenoxoxide and benzylamino) with different degrees of bulk and flexibility, have been formed and incorporated into a number of mononuclear FeII complexes of type trans-[FeII(L)2(NCX)2]·solvent (in which X = S, Se and BH3).
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Calorimetric measurements of the light-induced metastable high-spin state on the [Fe(PM-BiA)2(NCS)2] complex
J.A. Rodrı´guez-Velamazán,Miguel A. Castro,Elias Palacios,Ramón Burriel,J. Sánchez Costa,Jean-François Létard +5 more
TL;DR: In this paper, heat capacity measurements have been obtained on a pellet sample of [Fe(PM-BiA)2(NCS)2] formed by applying uniaxial pressure on the powder compound.
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Complete temperature study of the relaxation from HS to LS state in the mixed [FexZn1-x(Phen)2(NCS)2] systems (with x = 1, 0.73, 0.5, 0.32, 0.19 and 0.04)
TL;DR: In this paper, the thermal and light-induced spin transitions in [FexZn1-x(Phen)2(NCS)2] (Phen = 1,10-phenantholine) have been investigated by magnetic susceptibility, photomagnetism and diffuse reflectivity measurements.
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Multi-phase spin crossover in Fe(ptz)6(BF4)2
TL;DR: In this article, the phase diagram of the transition metal complex [Fe (ptz) 6 ](BF 4 ) 2, which appears as seriously more complex than expected from the earlier literature, with in particular at least two new phases, one corresponding to complexes in a high-spin state but stacked in low symmetry, the other arising from an unexpected reconstructive phase transition.
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Opposite effects of interactions and disorder on the switching properties of the spin transition compound [FeII(L)2][ClO4]2 · C7H8
Haritosh Mishra,Haritosh Mishra,Vibha Mishra,Vibha Mishra,François Varret,Rabindra Nath Mukherjee,Chérif Baldé,Cédric Desplanches,Jean-François Létard +8 more
TL;DR: Mishra et al. as mentioned in this paper developed a variant of a previous kinetic cooperative model, modified for including short-range and long-range Gaussian distributions of energy parameters, and solved numerically for the dynamic and the quasi-static case.