An OCO3- trianionic pincer tungsten(VI) alkylidyne: rational design of a highly active alkyne polymerization catalyst

Soumya Sarkar; Kevin P McGowan; Subramaniam Kuppuswamy; Ion Ghiviriga; Khalil A Abboud; Adam S Veige

doi:10.1021/ja2117975

An OCO3- trianionic pincer tungsten(VI) alkylidyne: rational design of a highly active alkyne polymerization catalyst

J Am Chem Soc. 2012 Mar 14;134(10):4509-12. doi: 10.1021/ja2117975. Epub 2012 Mar 5.

Authors

Soumya Sarkar¹, Kevin P McGowan, Subramaniam Kuppuswamy, Ion Ghiviriga, Khalil A Abboud, Adam S Veige

Affiliation

¹ Center for Catalysis, Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States.

PMID: 22352966
DOI: 10.1021/ja2117975

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.