FERROCENE DERIVATIVES CONTAINING ANTHRACENE LINKED BY SPACERS

Several ferrocene derivatives linked by a non-conjugated spacer to a 9 ,10-diphenylanthracene unit have been prepared, among them an amphiphi lic isoquinolinium salt. By X-ray structure analysis of the intermedia te 9,10-bis(4-hydroxyphenyl)anthracene, an almost perpendicular arrang ement of the phenyl groups with respect to the anthracene was found. T he properties of the compounds were studied by NMR and cyclovoltammetr y, which suggest that the isoquinolinium salt forms inverse micelles i n organic solvents. No indication for intramolecular aggregation of fe rrocene and isoquinolinium moieties by folding of the flexible alkyl s pacers could be detected. The compound forms a monolayer when spread o n water which can be transferred to a quartz surface. Repeated transfe r leads to a non-centrosymmetric Z-type array of layers in the Langmui r-Blodgett film.