Complexes of trivalent phosphorus derivatives. II. Metal carbonyl complexes of tris-(dimethylamino)-phosphine

Article abstract of DOI:10.1021/ic50009a014

Reactions of tris-(dimethylamino)-phosphine (Tdp) with the metal carbonyls Ni(CO)₄, Co₂(CO)₈, Cr(CO)₆, Mo(CO)₆, and W(CO)₆ yield the compounds (Tdp)₂Ni(CO)₂, [(Tdp)₂Co(CO)₃] [Co(CO)₄], (Tdp)Cr(CO)₅, (Tdp)Mo(CO)₅, and (Tdp)_2- W(CO)₄, respectively. Reaction of either Fe(CO)₅ or Fe₃(CO)₁₂ with tris-(dimethylamino)-phosphine yields a mixture of (Tdp)Fe(CO)₄ and (Tdp)₂Fe(CO)₃ which may be separated by fractional sublimation. Reactions of C₇H₈M(CO)₄ (C₇H₈ = bicyclo[2.2.1]heptadiene, M = Cr and Mo) and C₇H₈M(CO)₃ (C₇H₈ = cycloheptatriene, M = Cr and Mo) with tris-(dimethylamino)-phosphine yield the compounds (Tdp)₂M(CO)₄ (M = Cr and Mo). Reaction of Hg[Co(CO)₄]₂ with tris-(dimethylamino)-phosphine yields the compound Hg[Co(CO)₃(Tdp)]₂. Reaction of C₅H₅V(CO)₄ with tris-(dimethylamino)-phosphine yields the compound C₅H₅V(CO)₃(Tdp). Reaction of [C₅H₅NiCO]₂ with tris-(dimethylamino)-phosphine yields a mixture of (Tdp)₂Ni(CO)₂ and (C₅H₅)₂Ni. Reactions of the halide derivatives C₅H₅Fe(CO)₂I, C₃H₅Fe(CO)₃I, C₅H₅Mo(CO)₃I, and C₇H₇Mo(CO)₂I with tris-(dimethylamino)-phosphine yield the compounds [C₅H₅Fe(CO)₂(Tdp)]I, (Tdp)₂Fe(CO)₃, C₅H₅Mo(CO)₂(TdP)I (two isomers), and C₇H₇MoCO(Tdp)I. The proton n.m.r. spectra of these compounds are discussed.