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Singlet Fission in Carbene‐Derived Diradicaloids
Author(s) -
Ullrich Tobias,
Pinter Piermaria,
Messelberger Julian,
Haines Philipp,
Kaur Ramandeep,
Hansmann Max M.,
Munz Dominik,
Guldi Dirk M.
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202001286
Subject(s) - carbene , diradical , singlet fission , steric effects , singlet state , chemistry , dimer , intermolecular force , excited state , fission , photochemistry , computational chemistry , stereochemistry , molecule , organic chemistry , physics , atomic physics , nuclear physics , catalysis , neutron
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.