Comparison of structurally analogous Zn2, Co2, and Mg2 catalysts for the polymerization of cyclic esters

Laurie E. Breyfogle, Charlotte K. Williams, Victor G. Young, Marc A. Hillmyer, William B. Tolman

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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 ε-caprolactone and lactide, however, implicating complicated effects of metal ion variation in these polymerizations.

Original languageEnglish (US)
Pages (from-to)928-936
Number of pages9
JournalDalton Transactions
Issue number7
StatePublished - Feb 24 2006


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