Effects of coumarin substituents on the photophysical properties of newly synthesised phthalocyanine derivatives

Camur M., Bulut M., KANDAZ M., Güney O.

SUPRAMOLECULAR CHEMISTRY, cilt.21, sa.7, ss.624-631, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 21 Sayı: 7
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1080/10610270802613596
  • Dergi Adı: SUPRAMOLECULAR CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.624-631
  • Marmara Üniversitesi Adresli: Evet

Özet

In this study, synthesis of new ligands, 8-hydroxy-3-[p-(3',4'-dicyanophenoxy)-phenyl]coumarin and 8-hexyloxy-3-[p-(3',4'-dicyanophenoxy)-phenyl]coumarin, and their phthalocyanines, 2,9,16,23-tetrakis[8-hexyloxy-3-(4-oxyphenyl)coumarin]-metal-free and metallophthalocyanines {M[Pc(OBzCou)4] (M=2H, Zn(II), Co(II); Bz: benzene; Cou: coumarin)} were synthesised. The novel chromogenic compounds were characterised by elemental analysis: 1H NMR, 13C NMR, MALDI-TOF, IR and UV-vis spectral data. The effect of coumarin substituents on the photophysical properties of metal-free (H2Pc) and zinc phthalocyanines (ZnPc) derivatives has been examined. Spectrophotometric measurements revealed that coumarin-substituted ZnPc derivatives were in the unaggregated form, whereas those of H2Pc species were in aggregated form. It means that substitution of coumarin derivative prevents the cluster formation in the presence of zinc ion in the centre of Pc.