Dimetallacyclobutadiene derivatives: Catalysts or catalyst precursors for the ROMP of norbornene?

N. W. Eilerts, J. A. Heppert, M. D. Morton

Research output: Contribution to journalArticle

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Metallacyclobutadiene complexes with the formula (Me3SiCH2)4M2(μ-CSiMe3)2 (M = Ta or W) induce the ring-opening metathesis polymerization (ROMP) of norbornene. The tungsten compound acts as a stand-alone catalyst, polymerizing norbornene with a first-order dependence on both W2 and monomer. In contrast, the tantalum complex requires oxygen as an initiator, and generates an as yet undefined catalyst that shows a zero-order dependence on the monomer concentration.

Original languageEnglish (US)
Pages (from-to)157-163
Number of pages7
JournalJournal of Molecular Catalysis
Issue number1-3
Publication statusPublished - Oct 15 1992


ASJC Scopus subject areas

  • Engineering(all)

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