Inducing solid-state isolation of the phthalocyanine macrocycle by its incorporation within rigid, randomly shaped oligomers
- 17 March 2005
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 15 (18), 1865-1870
- https://doi.org/10.1039/b416387g
Abstract
The synthesis and properties of two non-planar and highly rigid pentamers containing four phthalocyanine units linked, via a spirocyclic fused ring system, to a central phthalocyanine or porphyrin core is described. It is shown that the rigidity of these novel oligomers, together with the large number of structural isomers of irregular shape induced by the presence of the four spiro-centres, inhibits efficient packing of the macrocycles in the solid state. Therefore, the UV–visible absorption spectrum of spin-coated films of these materials is almost identical to that obtained from the non-aggregated oligomers in dilute solution. Nitrogen adsorption measurements indicate a high surface area for one of the pentamers, which is consistent with some degree of microporosity.Keywords
This publication has 26 references indexed in Scilit:
- A nanoporous network polymer derived from hexaazatrinaphthylene with potential as an adsorbent and catalyst supportJournal of Materials Chemistry, 2003
- Synthesis and Properties of Star-Shaped Multiporphyrin−Phthalocyanine Light-Harvesting ArraysThe Journal of Organic Chemistry, 1999
- Cyanodibenzo[1,4]dioxines: A New Family of Synthons for Substituted Dibenzo[1,4]dioxinesChemistry Letters, 1999
- Molecular Distortion and Exciton Coupling Effects in β Metal-Free PhthalocyanineThe Journal of Physical Chemistry A, 1999
- The effect of NO2 on optical absorption in Langmuir–Blodgett films of octa-substituted amphiphilic copper phthalocyanine moleculesSensors and Actuators B: Chemical, 1998
- Phthalocyanines and related compounds:organic targets for nonlinear optical applicationsJournal of Materials Chemistry, 1998
- Oxidation of Pollutants Catalyzed by MetallophthalocyaninesAccounts of Chemical Research, 1997
- Elaboration and tests of microelectronically designed gas sensors with phthalocyanine sensitive layersSensors and Actuators B: Chemical, 1995
- Organic photoconductive materials: recent trends and developmentsChemical Reviews, 1993
- Surface plasmon resonance characterization of spin-deposited phthalocyanine filmsJournal of Materials Chemistry, 1992