Počet záznamů: 1  

Syntheses and Properties of some exo, exo-Bis(isodicyclopentadienyl)Titanium Low-valent Complexes

  1. 1.
    0181547 - UFCH-W 20020179 RIV CH eng J - Článek v odborném periodiku
    Horáček, Michal - Štěpnička, P. - Gentil, S. - Fejfarová, K. - Kubišta, Jiří - Pirio, N. - Meunier, P. - Gallou, F. - Paquette, L. A. - Mach, Karel
    Syntheses and Properties of some exo, exo-Bis(isodicyclopentadienyl)Titanium Low-valent Complexes.
    Journal of Organometallic Chemistry. Roč. 656, č. 1 (2002), s. 81-88. ISSN 0022-328X. E-ISSN 1872-8561
    Grant CEP: GA ČR GA203/99/0846; GA ČR GA203/02/0436
    Výzkumný záměr: CEZ:AV0Z4040901
    Klíčová slova: titanium * isodicyclopentadienyl ligand * NMR spectra
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 1.901, rok: 2002

    The paramagnetic compounds exo,exo-bis(eta(5)-isodicyclopentadienyl)chlorotitanium(III) (3) and its analogue with trimethylsilyl-substituted isodicyclopentadienide (isodiCp) ligand (4), and the similar pair of diamagnetic exo,exo-bis(isodicyclopentadienyl)[eta(2)-bis(trimethylsilyl)ethyne]titanium(II) complexes 5 and 6 were obtained by common reduction procedures from exo,exo-bis(isodicyclopentadienyl)titanium(IV) dichloride (1) and exo,exo-bis[eta5-2-(trimethylsilyl)isodicyclopentadienyl]titanium(IV) dichloride (2), respectively. As indicated by ESR spectroscopy compound 3 is a dimer in the solid state and in frozen toluene glass but monomeric in toluene solution. Compound 4 is monomeric in solution as well as in the solid state. As judged from the red shift of the vibration, compound 6 binds bis(trimethylsilyl)ethyne more strongly than compound 5. A comparison of their wavenumbers with those of the [Ti(C5H5-nMen)(2)(eta(2) -Me3SiC-CSiMe3)] (n=2-5) complexes shows that Lewis acidity.
    Trvalý link: http://hdl.handle.net/11104/0078101

     
     

Počet záznamů: 1  

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