Browsing by Author "Saffon, Nathalie"

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    N,N ' and N,O chelated phosphenium cations containing aminotroponiminate or aminotroponate units
    (ELSEVIER SCIENCE SA, 2009) Pop, Lucian Cristian; Katir, Nadia; Castel, Annie; Silaghi Dumitrescu, Luminita; Delpech, Fabien; Silaghi Dumitrescu, Ioan; Gornitzka, Heinz; MacLeod Carey, Desmond; Saffon, Nathalie
    New phosphenium cations stabilized by bidentate monoanionic N-isopropyl-2-(isopropylamino)troponiminate or 2-(isopropylamino)troponate units have been synthesized. These complexes were characterized by P-31, H-1 and C-13 NMR spectroscopies, and the molecular structures were determined by X-ray crystallography. These data indicate the formation of N,N'- and N,O-chelate derivatives having three-coordinate phosphorous atoms included in planar heterobicycles. Moreover, computational studies support the presence of high delocalization of the positive charge into the pi-conjugated carbon backbone and of the high-lying phosphorus lone-pair orbital. (c) 2009 Elsevier B.V. All rights reserved.
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    Synthesis and structure of some heterobimetallic complexes having a polyalkyl-s-indacenyl spacer
    (ELSEVIER SCIENCE SA, 2013) Morales Verdejo, Cesar; Martinez, Ivan; Mac Leod Carey, Desmond; Chavez, Ivonne; Manuel Manriquez, Juan; Matioszek, Dimitri; Saffon, Nathalie; Castel, Annie; Riviere, Pierre; Molins, Elies
    Three heterobimetallic complexes LmM(s-Ic')M'Ln (M = Fe, Ru or Mn; M' = Ni) having the same Cp* nickel moiety and based on a polyalkyl-s-indacenyl spacer (s-Ic' = 2,6-diethyl-4,8-dimethyl-s-indacenyl) were synthesized by reacting Cp* Ni(acac) with the lithium derivative of the parent monometalated complex. All three compounds were fully characterized and shown to adopt a trans geometry by X-ray crystallography. (C) 2012 Elsevier B. V. All rights reserved.