Goldmann, D.D.GoldmannJanietz, D.D.JanietzSchmidt, C.C.SchmidtWendorff, J.H.J.H.Wendorff2022-03-032022-03-032004https://publica.fraunhofer.de/handle/publica/20706510.1039/b400781fTwo columnar phases forming 2,4,6-triarylamino-1,3,5-triazines have been investigated in binary mixtures with calamitic and non-liquid crystalline benzoic acids carrying one or two alkoxy chains at the aromatic core. The triazines form hydrogen bonded aggregates with the complementary acids. Each investigated equimolar mixture exhibits a columnar mesophase due to segregation of the H-bonded polar core region from the lipophilic aliphatic molecular segments. The cross sectional shape of cylindrical aggregates and, therefore, the two-dimensional lattice symmetries, hexagonal or rectangular, are defined by the number of alkoxy chains of the benzoic acid component.en668540journal article