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Azaarenes: 13 Rings in a Row by Cyclopentannulation |
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| Authors: | MSc Steffen Maier MSc Nikolai Hippchen Fabian Jester Marcus Dodds Michel Weber Leon Skarjan Dr Frank Rominger Dr Jan Freudenberg Prof Uwe H F Bunz |
| Institution: | Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany |
| Abstract: | Cyclopentannulation was explored as a strategy to access large, stable azaarenes. Buchwald–Hartwig coupling of previously reported di- and tetrabrominated cyclopentannulated N,N′-dihydrotetraazapentacenes furnished stable azaarenes with up to 13 six-membered rings in a row and a length of 3.1 nm. Their optoelectronic and semi-conducting properties as well as their aromaticity were investigated. |
| Keywords: | Aromaticity Azaacenes Azaarenes Cyclopentannulation Molecular Nanocarbons |