S. Forget et al., NEW PATHWAYS TOWARDS LONG-CHAIN SUBSTITUTED DIBENZOTETRAAZA[14]ANNULENES, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 258, 1995, pp. 263
The synthesis of nickel complexes dibenzotetraaza [14] annulenes beari
ng four, six or eight long paraffinic chains is described. Preliminary
results concerning the mesomorphic properties of such systems show th
at those compounds exhibit a wide range hexagonal columnar phase.