title: New facets of an old ligand: titanium and zirconium complexes of phenylenediamine bis(phenolate) in lactide polymerisation catalysis.
abstract: Phenylenediamine bis(phenolate) binds in the reduced dianionic form to titanium and zirconium alkoxides giving either mononuclear or bridging dinuclear complexes depending on the metal precursors; the fluxional mononuclear titanium complex is found to exhibit extremely high activity in polymerisation of rac-lactide in the melt.
authors.affiliation: The School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 69978, Israel.
authors.forename: Ayellet L
authors.initials: AL
authors.lastname: Zelikoff
authors.forename: Jacob
authors.initials: J
authors.lastname: Kopilov
authors.forename: Israel
authors.initials: I
authors.lastname: Goldberg
authors.forename: Geoffrey W
authors.initials: GW
authors.lastname: Coates
authors.forename: Moshe
authors.initials: M
authors.lastname: Kol
mesh_terms: D002384:Catalysis; D004146:Dioxanes / Q000737:chemistry*; D008024:Ligands; D010655:Phenylenediamines / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis; D014025:Titanium / Q000737:chemistry*; D015040:Zirconium / Q000737:chemistry*
chemical_list: D004146:Dioxanes; D008024:Ligands; D010655:Phenylenediamines; D011108:Polymers; C091880:dilactide; D015040:Zirconium; D014025:Titanium