Proving Triptycene Homoconjugation with the Same Chromophore but Different Connectivity to the Core
| Autor: | Michael Mastalerz, Frank Rominger, Tobias Kirschbaum, Sven M. Elbert |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Bicyclic molecule
pictet–spengler reaction 010405 organic chemistry Chemistry Attachment site three-dimensional π-extended molecules Chromophore homoconjugation 010402 general chemistry 01 natural sciences 0104 chemical sciences lcsh:Chemistry chemistry.chemical_compound lcsh:QD1-999 Computational chemistry Triptycene Core (graph theory) triptycenes Electronic communication Methylene |
| Zdroj: | Organic Materials, Vol 03, Iss 02, Pp 097-102 (2021) |
| ISSN: | 2625-1825 |
| Popis: | Homoconjugation is a phenomenon discussed for various π-systems where classical conjugation is broken by e.g. methylene units but still a stabilization by electronic communication exists. In this respect, triptycene with its rigid C3 symmetric geometry is an ideal scaffold to study this phenomenon. Although several studies based on triptycene strengthen the hypothesis of homoconjugation, in all described cases the electronic communication through space relies on different π-blades. Here, two triptycenes are presented having the exact same π-extended chromophore, but differently annulated to the bicyclic core. Both compounds were investigated by spectroscopic as well as computational means and compared with the corresponding model compound, elucidating the influence of the attachment site to the triptycene core on potential homoconjugation. |
| Databáze: | OpenAIRE |
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