Synthesis and EPR studies of soluble vanadyl octakis(4-tert-butylbenzylthio) porphyrazine

Keskin B., Yerli Y., Avciata U.

JOURNAL OF COORDINATION CHEMISTRY, vol.66, no.15, pp.2615-2622, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 66 Issue: 15
  • Publication Date: 2013
  • Doi Number: 10.1080/00958972.2013.811496
  • Journal Name: JOURNAL OF COORDINATION CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2615-2622
  • Yıldız Technical University Affiliated: Yes

Abstract

Magnesium porphyrazinate substituted with eight 4-tert-butylphenylthio-groups on peripheral positions has been synthesized by cyclotetramerization of 1,2-bis(4-t-butylphenylthio)maleonitrile in the presence of magnesium butanolate. The metal-free derivative was obtained by treatment with trifluoroacetic acid and further reaction of this product with vanadyl(IV) sulfate led to the vanadyl porphyrazinate. These new compounds have been characterized by elemental analysis, together with FTIR, and UV-vis spectral data. The magnetic properties of the complex have been investigated by electron paramagnetic resonance spectroscopy.