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Synthesis and some optical results of long chain substituted phthalocyanines

Four metallo (zinc, copper, vanadyl, and indium) phthalocyanine derivatives bearing four aliphatic (hexylthio) groups were prepared from corresponding phthalonitrile compounds. The metallophthalocyanines were characterized with ultraviolet–visible spectroscopy (UV-Vis), proton nuclear magnetic resonance (1H NMR), Fourier transform-infrared spectroscopy (FT-IR), and mass and elemental analyses techniques. Aggregation properties of metallophthalocyanines in solution were studied in varied concentration ranges. Thin films of metallophthalocyanines were obtained by spin coating technique. Optical measurements showed that transmittance values of metallophthalocyanine thin films obviously changed with respect to the metal ion in the phthalocyanines. | Turkish Journal of Chemistry Turk J Chem 2018 42 21 28 http journals.tubitak.gov.tr chem ITAK c TUB Research Article doi 10.3906 kim-1705-33 Synthesis and some optical results of long chain substituted phthalocyanines Ibrahim ES OZC MECI 1 Idris SORAR2 1 Department of Chemistry Faculty of Arts and Sciences Istanbul Technical University Istanbul Turkey 2 Department of Physics Faculty of Arts and Sciences Mustafa Kemal University Hatay Turkey Received 18.05.2017 Accepted Published Online 12.08.2017 Final Version 08.02.2018 Abstract Four metallo zinc copper vanadyl and indium phthalocyanine derivatives bearing four aliphatic hexylthio groups were prepared from corresponding phthalonitrile compounds. The metallophthalocyanines were characterized with ultraviolet visible spectroscopy UV-Vis proton nuclear magnetic resonance 1 H NMR Fourier transform-infrared spectroscopy FT-IR and mass and elemental analyses techniques. Aggregation properties of metallophthalocyanines in solution were studied in varied concentration ranges. Thin films of metallophthalocyanines were obtained by spin coating technique. Optical measurements showed that transmittance values of metallophthalocyanine thin films obviously changed with respect to the metal ion in the phthalocyanines. Transmittance spectra of the phthalocyanines synthesized using different metal ions showed a variation of about 8 and 15 in transmittance spectra of the Q band region was obtained by mixing the two metal phthalocyanine indium and zinc solutions. Key words Phthalocyanine aliphatic groups aggregation thin film optical properties 1. Introduction Phthalocyanines Pcs are an amazing class of compounds that have attracted remarkable interest due to their various applications in medicinal and materials chemistry. Pcs are especially noted for their high chemical photochemical and thermal inflexibility and have thus found a lot of uses in many fields. 1 Numerous adjustments can be made in the Pcs either by the insertions of