Tuning of phthalocyanine absorption ranges by additional substituents

Dincer H. A. , GUL A. , Kocak M.

DYES AND PIGMENTS, vol.74, no.3, pp.545-550, 2007 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 74 Issue: 3
  • Publication Date: 2007
  • Doi Number: 10.1016/j.dyepig.2006.03.013
  • Title of Journal : DYES AND PIGMENTS
  • Page Numbers: pp.545-550


A new phthalonitrile derivative with two different substituents on 4- and 5-positions has been synthesized and its cyclotetramerization in the presence of anhydrous metal salts without any solvent resulted with phthalocyanines (4-6) containing a hexylthio group and malonylester on each benzo unit. When plithalocyanine formation was carried out in high-boiling alcohols in the presence of a base transesterification of malonyl esters gave products with enhanced solubility in apolar solvents. These new compounds have been characterized by H-1 NMR, FT-IR, UV-vis and mass spectroscopies. (c) 2006 Elsevier Ltd. All rights reserved.