Synthesis, solid state structure and polymerisation of a fully planar cyclopentadithiophene.
The new fully planar cyclopentadithiophene, 4-n-dodecylidene-4H-cyclopenta(2,1-b;3,4-b')dithiophene, shows extensive pi-stacking in the solid state with short intermolecular distances (ca. 3.5 A) between adjacent molecules. Polymerisation of this monomer by two different protocols gave solution processable alkenyl-bridged cyclopentadithiophene polymers with extended pi-conjugation in the main chain.
Department of Chemistry, University of Sheffield, Dainton Building, Brook Hill, Sheffield, UK S3 7HF.
Paolo
P
Coppo
Harry
H
Adams
Domenico C
DC
Cupertino
Stephen G
SG
Yeates
Michael L
ML
Turner