P. Herwig et al., COLUMNAR MESOPHASES OF ALKYLATED HEXA-PERI-HEXABENZOCORONENES WITH REMARKABLY LARGE PHASE WIDTHS, Advanced materials, 8(6), 1996, pp. 510
Communication: Polyaromatic hydrocarbons are model compounds for graph
ite and have interesting electronic and optoelectronic properties. The
synthesis and preliminary characterization of hexaalkyl-substituted h
exa-peri-hexabenzocoronenes (see Figure) are described. It is shown th
at they exhibit hexagonal columnar mesophases with remarkably large wi
dths, e.g., 339 K for R = n-C12H25.