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Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
Through-space donor-acceptor homoconjugation strategies for emissive radical species
Ashton R Davis1, Yujie Zhao1, Robert N Sansone1,2
1Department of Chemistry, Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA rgg@mit.edu tswager@mit.edu.
Abstract:
Open shell luminescent organic molecules have been gaining attention in recent years for their ability to access different excited state manifolds compared to their closed shell congeners. However, there has been little work to expand the design of these systems beyond direct conjugation strategies. Herein, we report the synthesis, and optical and magnetic characterization of two new triarylmethyl radical compounds that interact via a remote homoconjugation with a donor group through a [2.2.2] bridge. The properties of these bridged radicals are compared to those of a non-bridged species. This study ultimately expands the design strategies for synthesizing emissive radical species.
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