Özet
Two new phthalonitriles 1 and 2, extended with biphenylethynyl and diphenylacetylenyl, were synthesized through a combination of Corey-Fuchs and palladium-catalyzed Sonogashira coupling reactions. The structures of 1 and 2 were revealed through single-crystal X-ray analysis. Cyclotetramerization of these phthalonitriles led to the corresponding 1,4,8,11,15,18,22,25-octabutoxy-2,3,9,10,16,17,23,24-octakis(biphenyl) and (diphenylacetylenyl) phthalocyanines. The longer substituent, namely diphenylacetylenyl, is slightly more effective than biphenyl in shifting the Q band to a longer wavelength. A cathodic shift in first oxidation potential indicated the destabilization of the HOMO energy levels that results from non-peripheral substitution and extended π-conjugation.
Orijinal dil | İngilizce |
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Sayfa (başlangıç-bitiş) | 736-741 |
Sayfa sayısı | 6 |
Dergi | Journal of Molecular Structure |
Hacim | 1197 |
DOI'lar | |
Yayın durumu | Yayınlandı - 5 Ara 2019 |
Bibliyografik not
Publisher Copyright:© 2019 Elsevier B.V.
Finansman
This study was supported by the Research Fund of Istanbul Technical University . AG thanks Turkish Academy of Sciences (TUBA) for partial support. This study was supported by the Research Fund of Istanbul Technical University. AG thanks Turkish Academy of Sciences (TUBA) for partial support.
Finansörler | Finansör numarası |
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TUBA | |
Türkiye Bilimler Akademisi | |
Istanbul Teknik Üniversitesi |