0000000001313201
AUTHOR
Céline Mariette
showing 6 related works from this author
Symmetry breakings in a metal organic framework with a confined guest
2020
The MOF $[{\text{Fe(tvp)}}_{2}{(\text{NCS})}_{2}]\ifmmode\cdot\else\textperiodcentered\fi{}2\text{BzCHO}$ is demonstrated to undergo a complex sequence of phase transitions and spin-crossover behavior of its constitutive ${\text{Fe}}^{\text{II}}$ ions upon adsorption of benzaldehyde guest molecules. Our study, combining Raman and synchrotron x-ray diffraction measurements on a single crystal, reveals that the conversion from the pure high-spin to the pure low-spin phases implies a rich sequence of intermediate phases, with symmetry breaking forming at least three different space groups. These different symmetries involve spin-state ordering, ligand ordering, and guest ordering, interpreted …
Formation of local spin-state concentration waves during the relaxation from photoinduced state in a spin-crossover polymer
2017
The complex relaxation from the photoinduced high-spin phase (PIHS) to the low-spin phase of the bimetallic two-dimensional coordination spin-crossover polymer [Fe[(Hg(SCN)3)2](4,4′-bipy)2]nis reported. During the thermal relaxation, commensurate and incommensurate spin-state concentration waves (SSCWs) form. However, contrary to the steps forming at thermal equilibrium, associated with long-range SSCW order, the SSCWs forming during the relaxation from the PIHS phase correspond to short-range order, revealed by diffuse X-ray scattering. This is interpreted as resulting from the competition between the two types of SSCW order and another structural symmetry breaking, due to ligand ordering,…
CCDC 1970081: Experimental Crystal Structure Determination
2020
Related Article: Céline Mariette, Elzbieta Trzop, Jean-Yves Mevellec, Abdou Boucekkine, Aziz Ghoufi, Guillaume Maurin, Eric Collet, M. Carmen Muñoz, José Antonio Real, Bertrand Toudic|2020|Physical Review B: covering condensed matter and materials physics|101|134103|doi:10.1103/PhysRevB.101.134103
CCDC 1970080: Experimental Crystal Structure Determination
2020
Related Article: Céline Mariette, Elzbieta Trzop, Jean-Yves Mevellec, Abdou Boucekkine, Aziz Ghoufi, Guillaume Maurin, Eric Collet, M. Carmen Muñoz, José Antonio Real, Bertrand Toudic|2020|Physical Review B: covering condensed matter and materials physics|101|134103|doi:10.1103/PhysRevB.101.134103
CCDC 1970083: Experimental Crystal Structure Determination
2020
Related Article: Céline Mariette, Elzbieta Trzop, Jean-Yves Mevellec, Abdou Boucekkine, Aziz Ghoufi, Guillaume Maurin, Eric Collet, M. Carmen Muñoz, José Antonio Real, Bertrand Toudic|2020|Physical Review B: covering condensed matter and materials physics|101|134103|doi:10.1103/PhysRevB.101.134103
CCDC 1970082: Experimental Crystal Structure Determination
2020
Related Article: Céline Mariette, Elzbieta Trzop, Jean-Yves Mevellec, Abdou Boucekkine, Aziz Ghoufi, Guillaume Maurin, Eric Collet, M. Carmen Muñoz, José Antonio Real, Bertrand Toudic|2020|Physical Review B: covering condensed matter and materials physics|101|134103|doi:10.1103/PhysRevB.101.134103