COORDINATION-POLYMER FILMS BY REACTIVE SELF-ASSEMBLY

A novel self-assembly technique for the growth of insoluble and intrac table thin organic films is presently reported. Bifunctional 8,8'-dihy droxy-5,5'-biquinoline (bisquinoline) is reactively self-assembled wit h diethyl zinc to form a linear coordination polymer. FTIR, UV/VIS spe ctroscopy, profilometry, and photoluminescence measurements were used to characterize these new multilayer films. The growth of these films on glass substrates was monitored by increasing absorbance at 396.6 nm using UV/VIS spectroscopy and by profilometry. FTIR spectroscopy indi cated that the self-assembled films are polymeric in nature. The reduc tion of end-group hydroxyls and a significant red-shift of the photolu minescence emission spectrum with respect to zinc bisquinoline powder was attributed to an increase in conjugation length.