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Axially and Peripherally Substituted Phthalocyanine and Azaphthalocyanine Complexes for Heterojunction Design
The aim of this work was to synthesize novel phthalocyanines and pyrazinoporphyrazines with the main group elements and transition metals. The conformational rigidity and the steric bulk of their peripherally annelated cyclohexene rings tend to reduce the degree of aggregation, thus enhancing the so...
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| Formato: | Dissertation |
| Idioma: | inglês |
| Publicado em: |
Philipps-Universität Marburg
2015
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| Acesso em linha: | Texto integral em PDF |
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| Resumo: | The aim of this work was to synthesize novel phthalocyanines and pyrazinoporphyrazines with the main group elements and transition metals. The conformational rigidity and the steric bulk of their peripherally annelated cyclohexene rings tend to reduce the degree of aggregation, thus enhancing the solubility of these 42 π- Hückel aromatic system without inhibiting their tendencies to form crystalline phases. For central metals having an oxidation state > II, the possibility of introducing anionic axial ligands Lax, at the metal center was investigated and the optical properties of these chromophores were determined. In addition to their high solubility, some of the synthesized chromophores were found to be sublimable. Phthalocyanines and related compounds are interesting materials for optoelectronic applications; thus, a study of the electronic HOMO and LUMO alignment and coupling of these new chromophores at different heterojunction interfaces is outlined. |
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| DOI: | 10.17192/z2015.0233 |