title: Comparison of structurally analogous Zn2, Co2, and Mg2 catalysts for the polymerization of cyclic esters.
abstract: Three dimetallic monoethoxide complexes supported by a binucleating phenoxide ligand, LM2Cl2OEt (M = Zn, Co, or Mg), were prepared and shown by X-ray crystallography to be structurally analogous. Comparative studies of their cyclic ester polymerization reactivity revealed different trends for reactions with epsilon-caprolactone and lactide, however, implicating complicated effects of metal ion variation in these polymerizations.
authors.affiliation: Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, MN 55455-0431, USA.
authors.forename: Laurie E
authors.initials: LE
authors.lastname: Breyfogle
authors.forename: Charlotte K
authors.initials: CK
authors.lastname: Williams
authors.forename: Victor G
authors.initials: VG
authors.lastname: Young
authors.forename: Marc A
authors.initials: MA
authors.lastname: Hillmyer
authors.forename: William B
authors.initials: WB
authors.lastname: Tolman