Photophysical, Photochemical, and BQ Quenching Properties of Zinc Phthalocyanines with Fused or Interrupted Extended Conjugation
The effects of substituents and solvents on the photophysical and photochemical parameters of zinc(II) phthalocyanines containing four Schiff’s base substituents attached directly and through phenyleneoxy-bridges on peripheral positions are reported. The group effects on peripheral position and the...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2014/435834 |
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| author | Gülşah Gümrükçü Gülnur Keser Karaoğlan Ali Erdoğmuş Ahmet Gül Ulvi Avcıata |
| author_facet | Gülşah Gümrükçü Gülnur Keser Karaoğlan Ali Erdoğmuş Ahmet Gül Ulvi Avcıata |
| author_sort | Gülşah Gümrükçü |
| collection | DOAJ |
| description | The effects of substituents and solvents on the photophysical and photochemical parameters of zinc(II) phthalocyanines containing four Schiff’s base substituents attached directly and through phenyleneoxy-bridges on peripheral positions are reported. The group effects on peripheral position and the continual and intermittent conjugation of the phthalocyanine molecules on the photophysical and photochemical properties are also investigated. General trends are described for photodegradation, singlet oxygen, and fluorescence quantum yields of these compounds in dimethylsulfoxide (DMSO), dimethylformamide (DMF), and tetrahydrofurane (THF). Among the different substituents, phthalocyanines with cinnamaldimine moieties (1c and 2c) have the highest singlet oxygen quantum yields (ΦΔ) and those with nitro groups (1a and 2a) have the highest fluorescence quantum yields in all the solvents used. The fluorescence of the substituted zinc(II) phthalocyanine complexes is effectively quenched by 1,4-benzoquinone (BQ) in these solvents. |
| format | Article |
| id | doaj-art-1e9d72b3ae094ffb94d33fa0f0a862e0 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-1e9d72b3ae094ffb94d33fa0f0a862e02025-02-03T01:03:19ZengWileyJournal of Chemistry2090-90632090-90712014-01-01201410.1155/2014/435834435834Photophysical, Photochemical, and BQ Quenching Properties of Zinc Phthalocyanines with Fused or Interrupted Extended ConjugationGülşah Gümrükçü0Gülnur Keser Karaoğlan1Ali Erdoğmuş2Ahmet Gül3Ulvi Avcıata4Department of Chemistry, Technical University of Yildiz, Davutpasa, 34220 Istanbul, TurkeyDepartment of Chemistry, Technical University of Yildiz, Davutpasa, 34220 Istanbul, TurkeyDepartment of Chemistry, Technical University of Yildiz, Davutpasa, 34220 Istanbul, TurkeyDepartment of Chemistry, Technical University of Istanbul, Maslak, 34469 Istanbul, TurkeyDepartment of Chemistry, Technical University of Yildiz, Davutpasa, 34220 Istanbul, TurkeyThe effects of substituents and solvents on the photophysical and photochemical parameters of zinc(II) phthalocyanines containing four Schiff’s base substituents attached directly and through phenyleneoxy-bridges on peripheral positions are reported. The group effects on peripheral position and the continual and intermittent conjugation of the phthalocyanine molecules on the photophysical and photochemical properties are also investigated. General trends are described for photodegradation, singlet oxygen, and fluorescence quantum yields of these compounds in dimethylsulfoxide (DMSO), dimethylformamide (DMF), and tetrahydrofurane (THF). Among the different substituents, phthalocyanines with cinnamaldimine moieties (1c and 2c) have the highest singlet oxygen quantum yields (ΦΔ) and those with nitro groups (1a and 2a) have the highest fluorescence quantum yields in all the solvents used. The fluorescence of the substituted zinc(II) phthalocyanine complexes is effectively quenched by 1,4-benzoquinone (BQ) in these solvents.http://dx.doi.org/10.1155/2014/435834 |
| spellingShingle | Gülşah Gümrükçü Gülnur Keser Karaoğlan Ali Erdoğmuş Ahmet Gül Ulvi Avcıata Photophysical, Photochemical, and BQ Quenching Properties of Zinc Phthalocyanines with Fused or Interrupted Extended Conjugation Journal of Chemistry |
| title | Photophysical, Photochemical, and BQ Quenching Properties of Zinc Phthalocyanines with Fused or Interrupted Extended Conjugation |
| title_full | Photophysical, Photochemical, and BQ Quenching Properties of Zinc Phthalocyanines with Fused or Interrupted Extended Conjugation |
| title_fullStr | Photophysical, Photochemical, and BQ Quenching Properties of Zinc Phthalocyanines with Fused or Interrupted Extended Conjugation |
| title_full_unstemmed | Photophysical, Photochemical, and BQ Quenching Properties of Zinc Phthalocyanines with Fused or Interrupted Extended Conjugation |
| title_short | Photophysical, Photochemical, and BQ Quenching Properties of Zinc Phthalocyanines with Fused or Interrupted Extended Conjugation |
| title_sort | photophysical photochemical and bq quenching properties of zinc phthalocyanines with fused or interrupted extended conjugation |
| url | http://dx.doi.org/10.1155/2014/435834 |
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