... á. DOI:á10.1039/A903374B (Paper) Reference Section for: J. Mater. Chem., 1999, 9, 2189-2200. ... Two synthetic routes to 9,9-diethyl-2,7-bis(pyrrol-2-yl)fluorene (30) afford product in 30% and 20% yields, respectively. ... The lowest monomer oxidation potential (E p,m =0.4áV vs. ...