Synthesis, characterization, electrochemical and CO2 sensing properties of novel mono and ball-type phthalocyanines with four phenolphthalein units


ALTUN S., Altindal A. , Oezkaya A. R. , Bulut M., Bekaroglu O.

TETRAHEDRON LETTERS, cilt.49, ss.4483-4486, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 49
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1016/j.tetlet.2008.05.065
  • Dergi Adı: TETRAHEDRON LETTERS
  • Sayfa Sayıları: ss.4483-4486

Özet

The novel mono metallo [Zn(II) 4 and Co(II) 5] and ball-type or cofacial bis-metallo [Zn(II) 6 and Co(II) 71 phthalocyanines have been synthesized from 3, which can be obtained by the reaction of 4-nitrophthalonitrile 1 with 3,3-bis(4-hydroxy-phenyl)isobenzofuran-1(3H)-one 2 (phenolphthalein). The phthalocyanines have been characterized by elemental analysis, UV-vis, IR,H-1 NMR, and mass spectroscopy. The redox behavior of the complexes was investigated by cyclic voltammetry and controlled-potential coulometry. The electrochemical measurements suggested the formation of mixed-valent species during the redox processes of bis-metallophthalocyanines 6 and 7, as a result of the intramolecular interactions between two cofacial Pc units. The effect of temperature on the CO2 sensing properties of a spin-coated thin film of 7 was also investigated. (c) 2008 Elsevier Ltd. All rights reserved.