RT info:eu-repo/semantics/article T1 Phenoxotantalum(V) complexes A1 Gómez Rubio, Manuel A1 Royo Gracia, Pascual A1 Selas Pérez, José Manuel K1 Phenoxotantalum(V) K1 Ciencia K1 Química inorgánica K1 Science K1 Chemistry, inorganic AB The reaction of the compounds TaXCl4 (X = η5-C5H5, η5-C5H4SiMe3 or Cl) with o-diphenols 4-RC6H3(OH)2 (R = H, Me, But gave the dialkoxides XCl2Ta(O2C6H3R), whereas the reaction with 4,4′-isopropylidenediphenol gave the monoalkoxides [TaXCl3]2[(OC6H4)2CMe2]. Osmometry shows the cyclopentadienyl derivatives with X = η-C5H4SiMe3 and R = Me, But to be dimeric in benzene, but the halogeno complex with X = Cl and R = But to be trimeric. The new alkoxide complexes have been characterised by IR and 1H and 13C NMR spectroscopy. PB Elsevier SN 0022-328X YR 1986 FD 1986 LK http://hdl.handle.net/10017/4789 UL http://hdl.handle.net/10017/4789 LA eng DS MINDS@UW RD 20-abr-2024