Niobium and tantalum methyl complexes containing imido and cyclopentadienyl ligands. Crystal structure of [Nb(μ-C 5H 5)(N tBu)(Me)(Cl)]

• Published in: Journal of organometallic chemistry Vol. 462; no. 1; pp. C12 - C14
• Main Authors: Gibson, Vernon C., Poole, Andrew D., Siemeling, Ulrich, Williams, David N., Clegg, William, Hockless, David C.R.
• Format: Journal Article
• Language: English
• Published: LAUSANNE 1 Elsevier B.V 14.12.1993; Elsevier; Elsevier Science
• Subjects: Chemistry; Chemistry, Inorganic & Nuclear; Chemistry, Organic; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Organic chemistry; Organic compounds; Organometalloidal and organometallic compounds; Physical Sciences; Physics; Preparations and properties; Science & Technology; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Transition metals derivatives; ZIRCONOCENE; CHEMISTRY; POLYMERIZATION; REAGENTS; Tertiary phosphine; Molecular structure; Organic ligand; Tantalum Organic compounds; Transition metal Complexes; Experimental study; X ray diffraction; Niobium Organic compounds; Grignard reagent; Imido complex; Chloro complex; Hapto complex; Methylation; Crystalline structure
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/0022-328X(93)83384-8

Mono- and di-methyl complexes of the type (η-C 5H 5)Nb-(NR)(Me)(Cl) (R  tBu, 2,6- iPr 2C 6H 3) and (η-C 5Me 5)M(N-2,6- iPr 2C 6H 3)(Me) 2 (M  Nb, Ta) have been prepared by treatment of (η-C 5R′ 5)M(NR)(Cl 2) with one or two equivalents of methylmagnesium chloride respectively. Trimethylphosphine adducts are readily formed from the mono-methyl but not from the dimethyl compounds. The molecular structure of (η-C 5H 5)Nb(N tBu)(Me)(Cl) is reported.