SYNTHESIS OF LIQUID-CRYSTAL FERROCENE DERIVATIVES AND THEIR COMPLEXES WITH CU2+

A series of liquid crystal ferrocene-containing Schiff bases of general formula C5H5FeC5H4-C6H4-N=CN-(X)C6H3-O(O)-C6H4-OCnH2n+1 (X = H, OH, n = 3-12) was obtained, together with several analogs, 1,1'-bis-substituted at the ferrocene fragment, having a thermotropic nematic mesophases. Derivatives with X = OH were used to obtain Cu2+ chelate complexes, of which the compounds with n = 10 and n = 12 displayed nematic liquid crystalline properties.