The first fully characterized 1,3-polyazulene: high electrical conductivity resulting from cation radicals and polycations generated upon protonation.
[reaction: see text] 1,3-Polyazulene prepared by the chemical polymerization of 1,3-dibromoazulene with Ni(COD)(2) was aptly characterized by spectroscopic analysis. The azulene units remain intact in the isolated polymer. Protonation of 1,3-polyazulene by trifluoroacetic acid was found to exhibit high conductivity and paramagnetic properties via the formation of cation radicals and di- and polycations.
Wang
Fuke
F
Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543.
Lai
Yee-Hing
YH
Kocherginsky
N M
NM
Kosteski
Yu Yu
YY