Ghosh, Arindam ; Srinivasan, A. ; Suresh, Cherumuttathu H. ; Chandrashekar, Tavarekere K. (2016) [40]π Fused and Nonfused Core-Modified Nonaphyrins: Syntheses and Structural Diversity Chemistry - A European Journal, 22 (32). pp. 11152-11155. ISSN 0947-6539
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Official URL: http://doi.org/10.1002/chem.201602245
Related URL: http://dx.doi.org/10.1002/chem.201602245
Abstract
The synthesis of fused and nonfused core-modified 40π nonaphyrins are reported. Spectroscopic and X-ray structural studies reveal a twisted figure-eight conformation in the freebase form that is nonaromatic. Structural changes occur, from figure-eight to open extended conformation, upon protonation, thereby adopting 4nπ Hückel antiaromatic character, which is reflected in spectroscopic and theoretical studies. Such a structural change also induces ring inversions of specific heterocyclic rings by 180°.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley & Sons, Inc |
| ID Code: | 134867 |
| Deposited On: | 16 Jan 2023 04:15 |
| Last Modified: | 23 Jan 2023 08:36 |
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