Abstract
The spectral and electrochemical properties of metallated octanitrophthalocyanines, [M11{(NO2)8pc}] where M = Zn, Cu or Co, were studied by electrochemical and spectroelectrochemical methods as well as electronic absorption and magnetic circular dichroism spectroscopy. Aggregation is observed for several species. The octanitrophthalocyanines are easier to reduce and more difficult to oxidize than most other metallophthalocyanines. Indeed, the first ring-localized reduction potential observed with these phthalocyanine species, is the most positive of the metallated, neutral phthalocyanines in the literature. These data are added to existing Hammett free energy relationship database to extend design protocols for substituted metallophthalocyanines. Optical spectra for several redox series are presented and related to the existing literature.
Original language | English |
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Pages (from-to) | 338-354 |
Number of pages | 17 |
Journal | Collection of Czechoslovak Chemical Communications |
Volume | 66 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2001 Dec 1 |
Keywords
- Cobalt
- Copper
- Electrochemistry
- Electronic absorption spectroscopy
- Metallophthalocyanines
- Phthalocyanines
- Substituents effects
- Zinc
ASJC Scopus subject areas
- Chemistry(all)