RT info:eu-repo/semantics/article T1 Methylation of (pentamethylcyclopentadienyl)trichloro(diphenyldimethylenephosphoranyl-C,C)tantalum(V). Crystal structures of [TaCp*Cl3((CH2)2PPh2)] and [TaCp*Me2((CH)(CH2)PPh2)] A1 Gómez Rubio, Manuel A1 Jiménez Pindado, Gerardo A1 Royo Gracia, Pascual A1 Pellinghelli, Maria Angela A1 Tiripicchio, Antonio K1 Molecular structure K1 Complexes K1 Tantalum K1 Ciencia K1 Química inorgánica K1 Science K1 Chemistry, inorganic AB The X-ray diffraction study of [TaCp★Cl3{(CH2)2PPh2}] confirms its monomeric structure, previously proposed on the basis of its NMR behaviour. Alkylation of this compound leads to the isolation of its trimethyl derivative, along with a residue which contains minor amounts of the monomethyl complex. The pyrolysis of the trimethyl complex affords [TaCp★Me2{(CH)(CH2)PPh2}] whose crystal structure has been determined by X-ray diffraction methods. PB Elsevier SN 0022-328X YR 1992 FD 1992 LK http://hdl.handle.net/10017/4628 UL http://hdl.handle.net/10017/4628 LA eng NO We thank CICYT (Grant No PB89-0208), CEE (SCl*/0137-C AM), C.N.R.(Rome) and Italian Ministero dell'Università e della Ricerca Scientifica e Tecno­ logica (MURST) for financial support for this research. DS MINDS@UW RD 29-mar-2024