Synthesis and EPR studies of a near infrared absorbing tetrakis(2-naphthoxy)vanadylphthalocyanine

Ibrahim Özçeşmeci, Yusuf Yerli, Ali Ihsan Okur, Ahmet Gül*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Vanadylphthalocyanine with four naphthoxy pendant groups on the periphery was prepared by cyclotetramerization of 4-(2-naphthoxy)phthalonitrile. The new compound was characterized by elemental analyses, Mass, IR and UV-Vis spectral data. The electronic spectra exhibit an intense absorption peak at 703 nm indicating the C4v symmetry of VOPc. VO2+ ion in this structure was studied using electron paramagnetic resonance (EPR) technique at room temperature. The covalent bonding parameter for VO2+ ion and Fermi contact term were calculated using the principal axis values of the g and hyperfine splitting obtained from powder EPR spectrum.

Original languageEnglish
Pages (from-to)625-627
Number of pages3
JournalInorganic Chemistry Communications
Issue number7
Publication statusPublished - Jul 2009


This work was supported by the Research Fund of the Technical University of Istanbul.

FundersFunder number
Istanbul Teknik Üniversitesi


    • 2-Naphtol
    • Electronic spectrum
    • EPR
    • Phthalocyanines
    • Vanadium


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