title: A new synthetic entry to phosphinophosphinidene complexes. Synthesis and structural characterisation of the first side-on bonded and the first terminally bonded phosphinophosphinidene zirconium complexes [mu-(1,2:2-eta-tBu2P=P)[Zr(Cl)Cp2]2] and [[Zr(PPhMe2)Cp2](eta1)-P-PtBu2)].
abstract: The reactions of lithiated diphosphanes with transition metal chlorides constitute a new general entry to phosphinophosphinidene complexes: the reaction of Cp2ZrCl2(Cp = C5H5) with tBu2P-P(SiMe3)Li (molar ratio approximately 1:1) yields [mu-(1,2:2-eta-tBu2P=P)[Zr(Cl)Cp2]2]; the reaction of Cp2ZrCl2 with tBu2P-P(SiMe3)Li (molar ratio approximately 1:2) and an excess of PPhMe2 in DME yields the first terminally bonded phosphinophosphinidene complex, [[Zr(PPhMe2)Cp2](eta1-P-PtBu2)].
authors.affiliation: Chemical Faculty, Gdańsk University of Technology, ul. Narutowicza 11/12, 80-952, Gdańsk, Poland. pikies@chem.pg.gda.pl
authors.forename: Jerzy
authors.initials: J
authors.lastname: Pikies
authors.forename: Elke
authors.initials: E
authors.lastname: Baum
authors.forename: Eberhard
authors.initials: E
authors.lastname: Matern
authors.forename: Jaroslaw
authors.initials: J
authors.lastname: Chojnacki
authors.forename: Rafal
authors.initials: R
authors.lastname: Grubba
authors.forename: Andrzej
authors.initials: A
authors.lastname: Robaszkiewicz
mesh_terms: D018360:Crystallography, X-Ray; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D009943:Organophosphorus Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D015040:Zirconium / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D009943:Organophosphorus Compounds; D015040:Zirconium