화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals, Vol.393, 57-66, 2003
Novel nonlinear optical chromophores exhibiting mesomorphism
The bent-shaped tetra dentate Schiff's base ligands N,N'-bis [5-(4'-n-alkyl)phenylazosalicylidene] alkyldiamine H2L(n = 12) based on 1,1-, 1,2-, and 1,3-diamines viz., urea, diaminomaleonitrile, 1,2-phenylenediamine, and 4-nitro-1,3-phenylenediamine with the following molecular structure: where B is the bridging group 1,1-diamine ex: urea; and 1,2-diamine ex: diaminomaleonitrile and 1,2-phenylenediamine and 1,3-diamine ex: 4-nitro-1, 3-phenylenediamine were synthesized and characterized. All the compounds exhibit liquid crystalline properties.