Linking Metallacycle Transfer with Ring‐Opening Metathesis to Generate Polyacetylenes of Unprecedented Structure
Abstract
Abstract A hafnium‐based bicyclic precursor ( COT‐2B‐Hf ) has been prepared that enables tandem Hf/E metallacycle transfer (E = main group element) and the ring‐opening metathesis polymerization (ROMP) of cyclooctatetraene (COT) units to generate a new family of structurally unique polyacetylenes. Highlights from this work include a tellurophene‐grafted polyacetylene, poly‐COT‐2B‐Te , and a polyacetylene with unsaturated vinyl side chains, poly‐COT‐2B‐vinyl . The resulting polymers can be processed into films that yield optical band gaps as low as 1.6 eV, representing promising new architectures for the optoelectronics community.
Article Details
Authors (3)
Abhishek V. Muralidharan
Department of Chemistry University of Alberta 11227 Saskatchewan Dr Edmonton Alberta T6G 2G2 Canada
Michael J. Ferguson
Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, Alberta T6G 2G2, Canada
Eric Rivard
Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, Alberta T6G 2G2, Canada