title: Anion effect in the diastereoselective formation of bischelated Ni(II) complexes with a novel, chiral phosphine derived from 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU).
abstract: With the new chiral phosphine ligand DBUP, obtained from DBU and Ph(2)PCl, a remarkable anion effect was observed on the diastereoselective formation of the bischelated complexes [Ni(DBUP)(2)](X)(n) (X = Cl, Br, n = 2; X = NiCl(4), n = 1), which are active ethylene oligomerization catalyst precursors.
authors.affiliation: Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS) Université de Strasbourg, 4 rue Blaise Pascal, 67070, Strasbourg Cedex, France.
authors.forename: Matthew
authors.initials: M
authors.lastname: O'Reilly
authors.forename: Roberto
authors.initials: R
authors.lastname: Pattacini
authors.forename: Pierre
authors.initials: P
authors.lastname: Braunstein
mesh_terms: D000838:Anions / Q000737:chemistry; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000737:chemistry*; D002614:Chelating Agents / Q000737:chemistry*; D018360:Crystallography, X-Ray; D008024:Ligands; D008958:Models, Molecular; D015394:Molecular Structure; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010720:Phosphines / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D000838:Anions; D019086:Bridged Bicyclo Compounds, Heterocyclic; D002614:Chelating Agents; D008024:Ligands; D009942:Organometallic Compounds; D010720:Phosphines; D009532:Nickel; C044646:phosphine; C031033:1,8-diazabicyclo(5.4.0)undec-7-ene