4.8 Article

An OCO3- Trianionic Pincer Tungsten(VI) Alkylidyne: Rational Design of a Highly Active Alkyne Polymerization Catalyst

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 10, Pages 4509-4512

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja2117975

Keywords

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Funding

  1. UF
  2. NSF [CHE-0748408, CHE-0821346]
  3. Alfred P. Sloan Foundation
  4. Direct For Mathematical & Physical Scien
  5. Division Of Chemistry [0748408] Funding Source: National Science Foundation

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Synthesis, characterization, and catalytic alkyne polymerization results for the first trianionic pincer alkylidyne complex, [(BuOCO)-Bu-t]W CC(CH3)(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 x 10(6) g(PPA) mol(cat)(-1) h(-1)), and yield (87%) for the polymerization of 1-ethynyl-4-fluorobenzene.

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