Singlet Fission in Carbene‐Derived Diradicaloids
| Autor: | Dominik Munz, Julian Messelberger, Philipp Haines, Piermaria Pinter, Tobias Ullrich, Max M. Hansmann, Dirk M. Guldi, Ramandeep Kaur |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
energy conversion
Dimer 010402 general chemistry 01 natural sciences Catalysis chemistry.chemical_compound Computational chemistry Steric factor Research Articles Alkyl chemistry.chemical_classification 010405 organic chemistry Diradical singlet fission Intermolecular force General Chemistry self-assembly General Medicine 0104 chemical sciences carbenes Photophysics chemistry diradicaloids Excited state ddc:540 Singlet fission Carbene Research Article |
| Zdroj: | Angewandte Chemie (International Ed. in English) |
| ISSN: | 1521-3757 0044-8249 |
| Popis: | Herein, we present a new class of singlet fission (SF) materials based on diradicaloids of carbene scaffolds, namely cyclic (alkyl)(amino)carbenes (CAACs). Our modular approach allows the tuning of two key SF criteria: the steric factor and the diradical character. In turn, we modified the energy landscapes of excited states in a systematic manner to accommodate the needs for SF. We report the first example of intermolecular SF in solution by dimer self‐assembly at cryogenic temperatures. Diradicaloids derived from cyclic carbenes are singlet‐fission molecules with exceptionally large diradicaloid character, which self‐assemble at cryogenic temperatures in solution. |
| Databáze: | OpenAIRE |
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