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Singlet Fission in Carbene-Derived Diradicaloids.

ABSTRACT: 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.

SUBMITTER: Ullrich T 

PROVIDER: S-EPMC7317569 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Singlet Fission in Carbene-Derived Diradicaloids.

Ullrich Tobias T   Pinter Piermaria P   Messelberger Julian J   Haines Philipp P   Kaur Ramandeep R   Hansmann Max M MM   Munz Dominik D   Guldi Dirk M DM  

Angewandte Chemie (International ed. in English) 20200326 20

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. ...[more]

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