title: Reaction of N≡W(O(t)Bu)3 with σ3λ5-phosphoranes. The [2 + 2] cycloaddition across the W≡N triple bond results in the first representative of an inorganic four-membered metallacycle with conjugated endo- and exocyclic double bonds.
abstract: The reactions of N≡W(O(t)Bu)(3) with the low-coordinate phosphorus compounds (Me(3)Si)(2)NP(NSiMe(3))(2) (I) and (Me(3)Si)(2)NPS(N(t)Bu) (II) were studied. Quantum chemical calculations were used to determine why Mo- and W-containing compounds with the same composition have different molecular structures.
authors.affiliation: Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine.
authors.forename: Oleksandr O
authors.initials: OO
authors.lastname: Kovalenko
authors.forename: Vasyl
authors.initials: V
authors.lastname: Kinzhybalo
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Lis
authors.forename: Oleksiy V
authors.initials: OV
authors.lastname: Khavryuchenko
authors.forename: Eduard B
authors.initials: EB
authors.lastname: Rusanov
authors.forename: Anatolii I
authors.initials: AI
authors.lastname: Brusilovets