RT info:eu-repo/semantics/article
T1 Mixed halodicyclopentadienyl-niobium(V) and -tantalum(V)
A1 Antiñolo García, Antonio
A1 Fajardo, Mariano
A1 Otero Montero, Antonio
A1 Royo Gracia, Pascual
K1 Halodicyclopentadienyl-niobium(V)
K1 Tantalum(V)
K1 Ciencia
K1 Química inorgánica
K1 Science
K1 Chemistry, inorganic
AB Oxidation of (η5-C5H5)2MCl (M = Nb, Ta) with 1 mol of Cl2, Br2 or I2 gives (η5-C5H5)2MClX2 whereas the reaction with an excess of the halogen gives the cationic complexes [η5-C5H5)2MClX]+ X3− (X = Br, I). Similar oxidation of (η5-C5H5)2MCl2 with 0.5 mol of halogen gives (η5-C5H5)2MCl2X complexes, but if the halogen is used in excess cationic [η5-C5H5)2MCl2]+ X3− (X = Br, I; M = Ta and X = I, M = Nb) are obtained. All these complexes can also be obtained simultaneously by oxidizing (η5-C5H5)4M2Cl3, and the separation is fairly easy in most cases. Conductivity and IR and NMR data are discussed.
PB Elsevier
SN 0022-328X
YR 1984
FD 1984
LK http://hdl.handle.net/10017/4800
UL http://hdl.handle.net/10017/4800
LA eng
NO We greatly appreciate the financial support received from the Comisión Asesora de Investigación Cientifica y Tecnica (Spain).
DS MINDS@UW
RD 19-abr-2024