Synthesis, Structural Characterization, and MO Calculations of Vanadium Imido Complexes Containing Bidentate Phosphine Coligands.
Treatment of complex V(N-2,6-(i)Pr(2)C(6)H(3))Cl(3) with 1,2-dimethoxyethane (dme) gives in quasi-quantitative yield the adduct V(N-2,6-(i)Pr(2)C(6)H(3))Cl(3)(dme) (1). Interaction of 1 with bidentate phosphines gives V(N-2,6-(i)Pr(2)C(6)H(3))Cl(3)(P-P) (P-P = depe, 2a; dppe, 2b) compounds. An X-ray analysis (monoclinic, space group P2(1)/c, a = 14.7387(14) Å, b = 10.6738(10) Å, c = 16.999(3) Å, beta = 90.954(2) degrees, Z = 4, R = 0.0544), carried out on complex 2a, shows a mer arrangement of the chloride ligands and a nonsymmetrical coordination of the diphosphine ligand. One of the phosphorus atoms occupies the trans position with respect to the organoimido ligand. MO calculations on the models V(NR)Cl(3)(H(2)PCH(2)CH(2)PH(2)) (R = H, C(6)H(5)) of complex 2a were performed. The mer isomer, which is more stable than the fac isomer, shows good agreement with the experimental data.
Montilla
Francisco
F
Departamento de Química Inorgánica, Universidad de Sevilla, Aptdo 553, 41071 Sevilla, Spain, Departamento de Química Física, Universidad de Sevilla, 41071 Sevilla, Spain, and Instituto de Ciencia de Materiales, CSIC, Campus de Cantoblanco, 28049 Madrid, Spain.
Monge
Angeles
A
Gutiérrez-Puebla
Enrique
E
Pastor
Antonio
A
del Río
Diego
D
Hernández
Norge Cruz
NC
Sanz
Javier Fernández
JF
Galindo
Agustín
A