title: An OCO3- trianionic pincer tungsten(VI) alkylidyne: rational design of a highly active alkyne polymerization catalyst.
abstract: Synthesis, characterization, and catalytic alkyne polymerization results for the first trianionic pincer alkylidyne complex, [(t)BuOCO]W≡CC(CH(3))(3)(THF)(2) (6), are described. Complex 6 is a highly active catalyst for the polymerization of acetylenes and exhibits a high turnover number (4371), activity (1.05 × 10(6) g(PPA) mol(cat)(-1) h(-1)),and yield (87%) for the polymerization of 1-ethynyl-4-fluorobenzene.
authors.affiliation: Center for Catalysis, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States.
authors.forename: Soumya
authors.initials: S
authors.lastname: Sarkar
authors.forename: Kevin P
authors.initials: KP
authors.lastname: McGowan
authors.forename: Subramaniam
authors.initials: S
authors.lastname: Kuppuswamy
authors.forename: Ion
authors.initials: I
authors.lastname: Ghiviriga
authors.forename: Khalil A
authors.initials: KA
authors.lastname: Abboud
authors.forename: Adam S
authors.initials: AS
authors.lastname: Veige