화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals, Vol.549, 150-159, 2011
Synthesis and Physical Properties of Ferrocene Derivatives (XXV) Liquid Crystallinity of 1,3-Disubstituted Ferrocene Derivatives
Liquid crystallinity of 1,3-disubstituted ferrocene derivatives was studied by DSC and polarizing microscope. The name of the derivatives is 1,3-bis[omega-[4-(4-methoxyphenoxycarbonyl)phenoxy]alkyloxycarbonyl]ferrocene. Nine members from n = 2 to 10 were synthesized (n is carbon number of alkyl chain in the sample). All samples except n = 2 and 4 exhibited monotropic nematic liquid crystalline phase. In addition, smectic X (not yet completely identified) was also observed in n = 8 and 10. Liquid crystalline phase transition phenomena were discussed from a viewpoint of molecular shape.