Synthesis of tetraazatetracenes and -pentacenes: role of the substituents for their stability
Autor: | Michaela Märken, Benjamin D. Lindner, Anthony L. Appleton, Frank Rominger, Uwe H. F. Bunz |
---|---|
Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Pure and Applied Chemistry. 86:483-488 |
ISSN: | 1365-3075 0033-4545 |
DOI: | 10.1515/pac-2013-1211 |
Popis: | We report the synthesis of a series of novel tetraazaacene derivatives and compare their stability with respect to size, oxidation potential and position of the TIPS-ethynyl groups. The latter has the most pronounced effects on the stability. In case of azatetracenes where TIPS-alkynes are either attached laterally or in the peri-positions, the former ones dimerized while the latter are stable. Attempts to expand this concept to the corresponding tetrakis-peri-substituted heptacenes led to the isolation of the dimerized butterfly product. |
Databáze: | OpenAIRE |
Externí odkaz: |