Resonance stabilized bisdiselenazolyls as neutral radical conductors.
An efficient and versatile synthetic route to resonance stabilized bisselenathiazolyl and bisdiselenazolyl radicals 3 and 4 is described. Structural analysis of 3 and 4 confirm that lattice and pi-delocalization energies are sufficient to offset solid-state dimerization of the radicals and that the two selenium-containing radicals are isostructural with the all-sulfur based system 1. Variable temperature conductivity measurements indicate that sequential replacement of sulfur by selenium leads to a progressive increase in conductivity and reduction in thermal activation energy.
Brusso
Jaclyn L
JL
Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
Cvrkalj
Kristina
K
Leitch
Alicea A
AA
Oakley
Richard T
RT
Reed
Robert W
RW
Robertson
Craig M
CM