Synthesis and Structure of meso ‐Substituted Dibenzihomoporphyrins
Autor: | Ganapathi Emandi, Vincent Sol, Bhavya Khurana, Mathias O. Senge, Brendan Twamley, Nitika Grover |
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Rok vydání: | 2020 |
Předmět: | |
Zdroj: | European Journal of Organic Chemistry |
ISSN: | 1099-0690 1434-193X |
Popis: | Bench-stable meso-substituted di(p/m-benzi)homoporphyrins were synthesized through acid-catalyzed condensation of dipyrrole derivatives with aryl aldehydes. The insertion of a 1,1,2,2-tetraphenylethene (TPE) or but-2-ene-2,3-diyldibenzene unit in the porphyrin framework results in the formation of dibenzihomoporphyrins, merging the features of hydrocarbons and porphyrins. Single crystal X-ray analyses established the non-planar structure of these molecules, with the phenylene rings out of the mean plane, as defined by the dipyrromethene moiety and the two meso-carbon atoms. Spectroscopic and structural investigations show that the macrocycles exhibit characteristics of both TPE or but-2-ene-2,3-diyldibenzene and dipyrromethene units indicating the non-aromatic characteristics of the compounds synthesized. Additionally, the dibenzihomoporphyrins were found to generate singlet oxygen, potentially allowing their use as photosensitizers. |
Databáze: | OpenAIRE |
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