RT info:eu-repo/semantics/article
T1 η2-Iminoacyl and η2-acyl monocyclopentadienyl tantalum complexes bearing oxo and oxo-borane ligands
A1 Sánchez-Nieves Fernández, Javier
A1 Royo Gracia, Pascual
A1 González Mosquera, Marta Elena
K1 Tantalum
K1 Oxo ligands
K1 Insertion reactions
K1 Isocyanide
K1 Carbon monoxide
K1 Ciencia
K1 Química inorgánica
K1 Science
K1 Chemistry, inorganic
AB Alkyl-chloro ligand exchange by the reaction of [TaCp*R2{O·B(C6F5)3}] (R = CH2Ph, Me) with Ph3CCl gave the monoalkyl compounds [TaCp*RCl{O·B(C6F5)3}] (R = CH2Ph, Me). Insertion of CNAr (Ar = 2,6-Me2C6H3) and CO into a Ta–C bond of the mono- and dialkyl complexes gave the iminoacyl compounds [TaCp*X{η2-C(R)=NAr}{O·B(C6F5)3}] (X = R = CH2Ph, Me; X = Cl, R = CH2Ph) and the acyl compounds [TaCp*X{η2-C(R)=O}{O·B(C6F5)3}] (X = R = CH2Ph, Me; X = Cl, R = CH2Ph), respectively. The related chloro compound [TaCp*Cl{η2-C(Me)=NAr}{O·B(C6F5)3}] was isolated from the reaction of the oxo derivative [TaCp*Cl{η2-C(Me)=NAr}(O)] with the Lewis acid B(C6F5)3. Addition of CNAr or pyridine to [TaCp*(CH2Ph){η2-C(CH2Ph)=NAr}{O·B(C6F5)3}] afforded the borane-free complex [TaCp*(CH2Ph){η2-C(CH2Ph)=NAr}(O)] and the acid-base adduct L·B(C6F5)3 (L = py, CNAr). The molecular structures of [TaCp*Cl{η2-C(Me)=NAr}{O·B(C6F5)3}] and [TaCp*(CH2Ph){η2-C(CH2Ph)=O}{O·B(C6F5)3}] were obtained from X-ray diffraction studies.
PB John Wiley & Sons
SN 1099-0682
YR 2006
FD 2006
LK http://hdl.handle.net/10017/4184
UL http://hdl.handle.net/10017/4184
LA eng
DS MINDS@UW
RD 29-abr-2024