Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Hélène Gérard"'
Autor:
Anthony Vivien, Christophe Petit, Marc Petit, Hélène Gérard, Lynda Meziane, Caroline Salzemann, Stéphanie Halbert, Maya Guillaumont, Corinne Aubert
Publikováno v:
Chemistry of Materials
Chemistry of Materials, American Chemical Society, 2019, 31 (3), pp.960-968. ⟨10.1021/acs.chemmater.8b04435⟩
Chemistry of Materials, American Chemical Society, 2019, 31 (3), pp.960-968. ⟨10.1021/acs.chemmater.8b04435⟩
Herein is highlighted an original disproportionation mechanism for the formation of hexagonal closed packed cobalt nanoparticles starting from low-valent cobalt complexes. By coupling experimental ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1ac9b2ef2b17884c15dcbe664655586
https://hal.archives-ouvertes.fr/hal-02128663
https://hal.archives-ouvertes.fr/hal-02128663
Autor:
Hélène Gérard, Stéphanie Halbert
Publikováno v:
New Journal of Chemistry
New Journal of Chemistry, 2015, 39 (7), pp.5410-5419. ⟨10.1039/C5NJ00546A⟩
New Journal of Chemistry, Royal Society of Chemistry, 2015, 39 (7), pp.5410-5419. ⟨10.1039/C5NJ00546A⟩
New Journal of Chemistry, 2015, 39 (7), pp.5410-5419. ⟨10.1039/C5NJ00546A⟩
New Journal of Chemistry, Royal Society of Chemistry, 2015, 39 (7), pp.5410-5419. ⟨10.1039/C5NJ00546A⟩
International audience; A set of [Cu (I) L n (C 2 H 4)] q (q =-1, 0, or 1) complexes modelling systems of experimental interest were 5 studied by DFT calculations to analyze the Cu (I)-ethylene bonding using NBO and CDA analyses. All complexes are be
Publikováno v:
New Journal of Chemistry
New Journal of Chemistry, Royal Society of Chemistry, 2016, 40 (5), pp.4543-4549. ⟨10.1039/C5NJ03244J⟩
New Journal of Chemistry, Royal Society of Chemistry, 2016, ⟨10.1039/C5NJ03244J⟩
New Journal of Chemistry, 2016, ⟨10.1039/C5NJ03244J⟩
New Journal of Chemistry, Royal Society of Chemistry, 2016, 40 (5), pp.4543-4549. ⟨10.1039/C5NJ03244J⟩
New Journal of Chemistry, Royal Society of Chemistry, 2016, ⟨10.1039/C5NJ03244J⟩
New Journal of Chemistry, 2016, ⟨10.1039/C5NJ03244J⟩
International audience; Reaction of chlorophyll (a) with Cu 2+ or Zn 2+ in presence of acetonitrile has been studied on a slightly simplified model using DFT computations of three potential processes: substitution of the central Mg 2+ cation, chelati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa9abc1c213299a0427c52f20007de9c
https://hal.archives-ouvertes.fr/hal-02129245
https://hal.archives-ouvertes.fr/hal-02129245
Autor:
Dejian Huang, Odile Eisenstein, German Ferrando, Kenneth G. Caulton, Hélène Gérard, Joseph N. Coalter
Publikováno v:
New J. Chem.. 27:1451-1462
[RuHClL2]2, L = PiPr3, reacts with H2CCH(O2CR) (R = CH3, CF3, C6H5) during mixing at 20 °C, via two observable intermediates, to give RuCl(O2CR)(CHMe)L2; this carbene complex then redistributes the Cl and O2CR groups. Vinyl tosylate gives RuCl(OTs)(
Autor:
Joseph N. Coalter, Odile Eisenstein, Kenneth G. Caulton, Hélène Gérard, German Ferrando-Miguel, John C. Huffman
Publikováno v:
New Journal of Chemistry. 26:687-700
Reaction of [RuHCl(PiPr3)2]2 with THF or dioxolane doubly dehydrogenates the carbon α to the oxygen to yield RuHCl(H2)(PiPr3)2, together with the coordinated cyclic carbene, RuHCl[CO(CH2)2E](PiPr3)2, where E=CH2 or O. In the presence of CH2CHtBu as
Publikováno v:
New Journal of Chemistry. 25:1382-1388
The adduct OsHCl(C2D4)(CO)L2 (L = PiPr3) shows only very slow H/D exchange at 25 °C, but this is easily detectable at 65 °C; no ethyl species is formed in detectable concentration. RuHCl(CO)L2 shows no detectable C2D4 adduct, but Ru–H/C–D excha
Publikováno v:
New Journal of Chemistry. 25:1121-1131
To understand photochemical and thermal alkane activation with IrH2(O2CCF3)(PAr3)2 (Ar = p-FC6H4), H/D isotope scrambling between alkenes and IrD2(O2CCF3)(PAr3)2 was studied. No unique interpretation of the experimental data was possible, so DFT(B3PW
Autor:
Franck Paté, Aurélien de la Lande, Anne Harrison-Marchand, Jacques Maddaluno, Olivier Parisel, Hassan Oulyadi, Hélène Gérard
Publikováno v:
Chem. Commun.. :319-321
The exchange of Me(6)Li aggregated to a lithium amide by (7)LiCl leads to a specific isotope distribution whose microscopic origin is assigned to an edge-to-edge interaction between the R(2)NLi-MeLi aggregate and (LiCl)(2) by NMR and Car-Parrinello m
Publikováno v:
New Journal of Chemistry
New Journal of Chemistry, 2012, 36 (12), pp.2441-2446. ⟨10.1039/C2NJ40474E⟩
New Journal of Chemistry, Royal Society of Chemistry, 2012, 36 (12), pp.2441-2446. ⟨10.1039/C2NJ40474E⟩
New Journal of Chemistry, 2012, 36 (12), pp.2441-2446. ⟨10.1039/C2NJ40474E⟩
New Journal of Chemistry, Royal Society of Chemistry, 2012, 36 (12), pp.2441-2446. ⟨10.1039/C2NJ40474E⟩
Organolithium reagents in solution are known to adopt oligomeric structures that are highly sensitive to the presence and nature of additives. In particular, the addition of lithium halides, chalcogenides or pnictogenides leads, in many cases, to wel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86a09b19bb2159237f13ae95bde5a4ad
https://hal.science/hal-01016523
https://hal.science/hal-01016523
Publikováno v:
The journal of physical chemistry. B. 110(27)
The properties of N-methylacetamide along a cis-trans isomerization pathway described by twisting about the C(O)-N bond are examined at finite temperature both in vacuo and in explicit water solvent. Two distinctly different theoretical descriptions,