title: Synthesis and structural characterization of 1,2,4-diazaphospholide complexes of titanium(IV) and titanium(III).
abstract: Two 1,2,4-diazaphospholide complexes of [Ti(η(2)-3,5-Ph(2)dp)(4)] and paramagnetic [Ti(η(2)-3,5-tBu(2)dp)(3)] were prepared by the reaction of tetrakis(dimethylamido)titanium(IV) with 3,5-diphenyl-1,2,4-diazaphophole, H[3,5-Ph(2)dp], or by the treatment of 3,5-tert-butyl-1,2,4-diazaphopholide potassium, K[3,5-tBu(2)dp], with titanium trichloride. Complexes can be viewed as the core of P(σ(2)λ(3))-functionalized metallodendrimers, in which the metal atoms are exclusively η(2)(N,N) bonding to the 1,2,4-diazaphospholides while P atoms (σ(2)λ(3)) with electron lone pairs are located on the periphery of the molecules.
authors.affiliation: Institute of Organic Chemistry, Shanxi Normal Univeristy, Gongyuan Street 1, Linfen, Shanxi Province 041004, China. wjzheng@sxnu.edu.cn
authors.forename: Wenjun
authors.initials: W
authors.lastname: Zheng
authors.forename: Ibon
authors.initials: I
authors.lastname: Alkorta
authors.forename: Dongming
authors.initials: D
authors.lastname: Yang
authors.forename: Li
authors.initials: L
authors.lastname: Wan
authors.forename: Mingang
authors.initials: M
authors.lastname: Zhao
authors.forename: José
authors.initials: J
authors.lastname: Elguero
mesh_terms: D001372:Aza Compounds / Q000737:chemistry*; D018360:Crystallography, X-Ray; D050091:Dendrimers / Q000737:chemistry*; D015394:Molecular Structure; D017553:Phosphorus Compounds / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
chemical_list: D001372:Aza Compounds; D050091:Dendrimers; D017553:Phosphorus Compounds; D014025:Titanium