Zinc(II)phthalocyanine as an optical window for visible region

► Zinc(II)phthalocyanine with 2-naphthoxy substituents on the periphery was achived by cyclotetramerization of corresponding phthalonitrile derivative. ► Thin films of this compound have been obtained by spin coating on 2947 Corning glass substrates. ► Transmittance spectra of the films show specific regions of high and low absorption values suitable for optic filters or optic windows. ► Films prepared from less concentrated solutions are leading to higher surface areas suitable for catalytic and sensor applications.