Position isomer separation of non-peripheral substituted zinc dibenzo-di(3,4-pyrido)porphyrazines

Keiichi Sakamoto, Taku Kato, Michael J. Cook

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


The cyclotetramerisation products from the 1,8-diazabicyclo[5,4,0]undec-7-ene catalysed reaction of a 1:1 mol mixture of 3,6-didecylphthalonitrile and 3,4-dicynopyridine in the presence of zinc chloride have been isolated by chromatography. The fractions comprise zinc octadecylphthalocyanine and compounds in which one, two, three and four pyridinoid rings replace the didecylbenzenoid moiety. The zinc bis(1,4-didecylbenzo)bis(3,4pyrido)porphyrazine fraction was separated further into four sub-fractions and the components have been characterised by 400 MHz proton nuclear magnetic resonance spectroscopy, visible region spectroscopy, fluorescence spectroscopy and by cyclic voltammetry. Copyright (C) 2001 John Wiley & Sons, Ltd.
Original languageEnglish
Pages (from-to)742-750
Number of pages9
JournalJournal of Porphyrins and Phthalocyanines
Issue number10
Publication statusPublished - 2001

Cite this