Laterally substituted symmetric and nonsymmetric salicylideneimine-based bent-core mesogens

• Sonja Findeisen-Tandel,
• Wolfgang Weissflog,
• Ute Baumeister,
• Gerhard Pelzl,
• H. N. Shreenivasa Murthy and
• Channabasaveshwar V. Yelamaggad

Beilstein J. Org. Chem. 2012, 8, 129–154, doi:10.3762/bjoc.8.15

• corresponding molecular movements, is sensitive to variations in the molecular structure. Keywords: antiferroelectric smectic phases; bent-core mesogens; electro-optical behaviour; liquid crystals; salicylideneanilines; Introduction For a long time there was a general perception that molecules capable of

• architecture has attracted significant attention. Several examples demonstrate this, as many salicylideneanilines exhibiting mesophases are listed, see e.g., [12][13]. These salicylideneanilines, but also salicylideneimines, can form metallomesogens by complexation with d- and f-block elements, [14][15][16][17

• ]. Tris(salicylideneanilines) having a discotic shape exhibit a room-temperature columnar mesophase [18][19]. Dendromesogens containing up to 64 peripheral mesogenic salicylideneimine fragments have also been reported [20]. Antiferroelectric behaviour has been claimed by Yablonski et al. to be exhibited