Počet záznamů: 1

Polyfluoroalkylated tripyrazolylmethane ligands: Synthesis and complexes

  1. 1.
    0369772 - UACH-T 2012 RIV CH eng J - Článek v odborném periodiku
    Skalická, V. - Rybáčková, M. - Skalický, M. - Kvíčalová, Magdalena - Cvačka, Josef - Březinová, Anna - Čejka, J. - Kvíčala, J.
    Polyfluoroalkylated tripyrazolylmethane ligands: Synthesis and complexes.
    Journal of Fluorine Chemistry. Roč. 132, č. 7 (2011), s. 434-440 ISSN 0022-1139
    Grant CEP: GA MŠk ME 857; GA MŠk ME09114
    Výzkumný záměr: CEZ:AV0Z40320502; CEZ:AV0Z40550506
    Klíčová slova: tripyrazolylmethane * Tpm * tripyrazolylethanol * fluorinated * perfluoroalkylation * ligand
    Kód oboru RIV: CC - Organická chemie
    Impakt faktor: 2.033, rok: 2011

    Tripyrazolylmethanes represent a novel class of uncharged ligands analogous to charged tripyrazolylborates (scorpionates), which are isoelectronic and isolobal with cyclopentadienides. We report here a straightforward synthesis of the first polyfluoroalkylated tripyrazolylmethane ligands bearing C(4)F(9)-C(12)F(25) ponytails, based on allylation/perfluoroalkylation/reduction sequence of transformations of 2,2,2-tripyrazol-1-ylethanol. Model complexation reactions of these ligands gave sandwich complexes of copper(II), nickel(II), cobalt(II) and iron(II), the structure of which was confirmed by detailed MS analysis, as well as by NMR spectroscopy for the fourth diamagnetic complex. Fluorophilicity of the ligands and their complexes peaks for C(10)F(21) ponytail but lies below zero.
    Trvalý link: http://hdl.handle.net/11104/0203763