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High pressure and very low temperature effects on the crystal structures of some iron(II) complexes

Autor: Daniel Chasseau, J. Gaultier, Andrés E. Goeta, Philippe Guionneau, Jean-François Létard, Judith A. K. Howard, Y. Barrans, Catherine Brigouleix

Publikováno v: Comptes Rendus de l'Académie des Sciences - Series IIC - Chemistry. 4:161-171

The crystal structures at 30 K of two iron(II) complexes, and their comparison with higher temperature crystal structures indicate that, outside of the spin transition range, the only intramolecular modification comes from dynamical aspects. The cont

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0a8f437ab5599af98c391ec2fa2bf458
https://doi.org/10.1016/s1387-1609(00)01193-2

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Temperature and pressure dependencies of the crystal structure of the organic superconductor (TMTSF) 2 ClO 4

Autor: Y. Barrans, Daniel Chasseau, Laurent Ducasse, J. Gaultier, F. Castet, D. Le Pevelen

Publikováno v: The European Physical Journal B. 19:363-373

The crystal structure of (TMTSF)2ClO4 has been determined at (7 K, 1 bar) and at (7 K, 5 kbar) with a high accuracy. For the latter, low temperature and pressure were applied simultaneously using a X-ray diffraction instrumentation designed in our la

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c4daf06eab2f7fd8f535fa7ae586a35c
https://doi.org/10.1007/s100510170312

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Structural aspects of the phase transitions in (BEDO-TTF)2ReO4·H2O

Autor: Eduard B. Yagubskii, Y. Barrans, Rimma P. Shibaeva, Enric Canadell, J. Gaultier, Nataliya D. Kushch, Salavat S. Khasanov, Roger Rousseau, Daniel Chasseau, Leokadiya V. Zorina

Publikováno v: Synthetic Metals. 103:1853-1856

The effect of the first-order phase transition occurring around 220K on the crystal and electronic structure of the molecular superconductor (BEDO-TTF)2ReO4·H2O has been studied. The crystal structure at 170K has been determined and it is found that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aee513c492b791d6d3b50690922f530c
https://doi.org/10.1016/s0379-6779(98)00255-0

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Dramatic anion size effect on structural and magnetic properties within a series of novel antiferromagnetic organometallic radical cation salts: [Cp Mo(dmit) ][X ](X = PF , AsF ,SbF )

Autor: P.A. Albouy, Y. Barrans, J. Gaultier, Marc Fourmigué, Claude Coulon, Rodolphe Clérac

Publikováno v: The European Physical Journal B. 9:431-443

Electrocrystallization of CH2Cl2 solutions of Cp2Mo(dmit), dmit2- = 2-thioxo-1,3-dithiole-4,5-dithiolate, in the presence of n-Bu4NX (X- = PF 6 - , AsF 6 - , SbF 6 - ) affords the corresponding 1:1 cation radical salts [Cp2Mo(dmit) ][X-]. The three i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cf70ae61d16e5559445bd85ed2a42c8
https://doi.org/10.1007/s100510050785

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Experimental determination and modelization of a unique phase diagram: solid solutions of antiferromagnetic organometallic radical cation salts

Autor: J. Gaultier, Rodolphe Clérac, Claude Coulon, Y. Barrans, Marc Fourmigué, P.A. Albouy

Publikováno v: The European Physical Journal B. 9:445-459

The physical properties of paramagnetic Mo(V) organometallic radical cation salts, , are investigated through the study of two series of solid solutions incorporating two kinds of anions ( or ). The combination of EPR and X-ray diffraction is used to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1caa1a79f35ef989fde5a64376fb395b
https://doi.org/10.1007/s100510050786

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Crystal Structure and Physical Properties of {Bis(ethylenedithio)tetrathiafulvalene}2dicyano-Silver and -Gold

Autor: Peter Day, Hiroshi Kitagawa, Den Yoshida, Hideo Shimoda, Tadaoki Mitani, Philippe Guionneau, Laurent Ducasse, Daniel Chasseau, Mohamedally Kurmoo, Y. Barrans

Publikováno v: Bulletin of the Chemical Society of Japan. 69:1233-1240

We report the crystal and electronic band structures and the electrical, magnetic, and optical properties of {bis(ethylenedithio)tetrathiafulvalene}2dicyano-silver and -gold, η-(BEDT–TTF)2M(CN)2, M = Ag or Au. The compounds belong to the monoclini

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::938afba3fab2b7d05b1e2b95a5219549
https://doi.org/10.1246/bcsj.69.1233

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Two 9,10-anthracenocryptand silver(I) nitrate complexes. Fluorescence modulated by Ag+ as a function of the geometry of the complex

Autor: H. Bouas-Laurent, P. Marsau, Y. Barrans, J.-P. Desvergne, F. Fages, H. Andrianatoandro

Publikováno v: Acta Crystallographica Section B Structural Science. 51:293-300

The two anthracenocryptands 3,12-octano-3,12-diaza-6,9,31,34-tetraoxa[14](9, 10)anthracenophane, C 30 H 40 N 2 O 4 (A 22 ), and 4,13-octano-4,13-diaza-7,10,33,36-tetraoxa[6](9,10)anthracenophane, C 32 H 44 N 2 O 4 (A 33 ), were designed to direct int

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd825978e4f001ed0f8ed4ba994f5e86
https://doi.org/10.1107/s0108768194011572

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Laboratory high-pressure single-crystal x-ray diffraction—recent improvements and examples of studies

Autor: J. Gaultier, S Pechev, Daniel Chasseau, Y. Barrans, M Marchivie, Philippe Guionneau, D. Le Pevelen

Publikováno v: Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter, IOP Publishing, 2004, 16 (14), pp.S1151-S1159. ⟨10.1088/0953-8984/16/14/025⟩

Some recent improvements made to the high-pressure single-crystal x-ray diffraction (XRD) experiments in use in our laboratory are reviewed. In particular a set-up to perform high-pressure (0–3.0 GPa)–low-temperature (300–9 K) investigations as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::524eddf2d6a83bffe69b73fbd1ae82c7
https://hal.archives-ouvertes.fr/hal-00137530

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Low temperature structural properties of the (TMTSF)2NO3 salt

Autor: Daniel Chasseau, Y. Barrans, Philippe Guionneau, Jean-Marc Fabre, J. Gaultier, S. Bracchetti

Publikováno v: Synthetic Metals. 103:2042-2043

The ordering of the anion in the molecular conductor salt (TMTSF) 2 NO 3 at low temperature depends on the rate of cooling and corresponds to the doubling of the a cell parameter. This order-disorder transition does not affect the crystal packing as

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::01225ec20214bf6ffce4364887270660
https://doi.org/10.1016/s0379-6779(98)00397-x

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Influence of the pressure on the low temperature (7K) crystal structure of the superconducting molecular salt (TMTSF)2ClO4

Autor: J. Gaultier, D. Le Pevelen, Y. Barrans, Daniel Chasseau

Publikováno v: Synthetic Metals. 102:1609-1610

The anion ordering which occurs in (TMTSF) 2 ClO 4 at 24 K is characterized by the appearance of b * /2 superlattice reflections, without any important change in the basic crystal structure. The intensities of these superlattice reflections have been

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e2ba09ed866183bec8b7b9c0611ea2a8
https://doi.org/10.1016/s0379-6779(98)00415-9

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