Title | Vanadium and niobium diamidophosphine complexes and their reactivity |
Publication Type | Journal Article |
Year of Publication | 2003 |
Authors | Shaver, MP, Thomson, RK, Patrick, BO, Fryzuk, MD |
Journal | Canadian Journal of Chemistry-Revue Canadienne De Chimie |
Volume | 81 |
Pagination | 1431-1437 |
Date Published | Dec |
Type of Article | Article |
ISBN Number | 0008-4042 |
Keywords | 3-COORDINATE MOLYBDENUM(III), BRIDGING N-2 UNIT, COORDINATION, COORDINATION CHEMISTRY, DINITROGEN COMPLEX, END-ON, FUNCTIONALIZATION, HYDROGENATION, LIGAND, METATHESIS, NIOBIUM, REDUCTION, REDUCTIVE CLEAVAGE, SIDE-ON, TANTALUM COMPLEX, VANADIUM |
Abstract | The tridentate ligand precursors R’P(CH2SiMe2NR")(2) ((R’R’’)[NPN]: R’ = Cy, Ph; R" = Ph, Mes, Me) were prepared from metathesis reactions of a lithiated amine, chloro(chloromethyl)dimethylsilane, the appropriate 1degrees phosphine, and n-butyl lithium and were isolated as solvent adducts. Metathesis between (CyPh)[NPN]Li-2(OEt2), 2, and VCl3(THF)(3) afforded ((CyPh)[NPN]VCl)(2), 7, whose solid-state structure was established by X-ray crystallography. Reduction attempts of the ((R’R’’)[NPN]VCl)(2) species with KC8 incorporated molecular nitrogen but were complicated by imide formation and ligand decomposition. Metathesis of 2 with NbCl2Me3 afforded the highly unstable complex (CyPh)[NPN]NbMe3, 15. Attempts to hydrogenate this species were unsuccessful. |
URL | <Go to ISI>://000187035400001 |
