Bis((2,6-diisopropylphenyl)imido) complexes of molybdenum(VI)

Article abstract of DOI:10.1021/om00055a065

The motybdenum(VI) complex (AR′N)₂MoCl₂· THF (Ar′ = 2,6-diisopropylphenyl) was prepared by reaction of MoO₂Cl₂ with Ar′NCO at 70°C in THF. The preparations of the derivatives Mo(NAr′)₂Np₂, Mo-(NAr′)₂Mes₂, Mo(NAr′)₂MeSBr. Mo(NAr′)₂(NEt₂)Cl, and Mo-(NAr′)₂(NEt₂)₂ from Mo(NAK)₂Cl₂-THF are described. In addition, the complex Mo(NAr′)₂(NHAK)₂ has been synthesized and characterized crystallographically. Crystal data: MoC₄₈H₇₀N₄, M_r = 799.06, monoclinic, P2₁/n, a = 9.874 (3) A?, b = 24.004 (8) A?, c = 19.220 (7) A?, β = 93.34 (2) A?, V = 4547 A?³, Z = 4, ρ_calc = 1.167 g cm^-3, λ = 1.5418 A?, μ = 26.35 cm^-1, T = -100°C, R = 4.22% for 4426 unique observed [I ≥ 3σ(I)] reflections, R_w = 7.65%.