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- W4296799314 abstract "Interchromophoric interactions such as Coulombic coupling and exchange interactions are crucial to the functional properties of numerous π-conjugated systems. Here, we use magnetic circular dichroism (MCD) spectroscopy to investigate interchromophoric interactions in singlet fission relevant pentacene dimers. Using a simple analytical model, we outline a general relationship between the geometry of pentacene dimers and their calculated MCD response. We analyze experimental MCD spectra of different covalently bridged pentacene dimers to reveal how the molecular structure of the bridge affects the magnitude of through-space Coulombic and through-bond exchange interactions in the system. Our results show that through-bond interactions are significant in dimers with conjugated molecules as bridging units and these interactions promote the overall electronic coupling in the system. Our generalized approach paves the way for the application of MCD in investigating interchromophoric interactions across a range of π-conjugated systems." @default.
- W4296799314 created "2022-09-24" @default.
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- W4296799314 date "2022-09-23" @default.
- W4296799314 modified "2023-10-16" @default.
- W4296799314 title "Probing Through-Bond and Through-Space Interactions in Singlet Fission-Based Pentacene Dimers" @default.
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- W4296799314 doi "https://doi.org/10.1021/acs.jpclett.2c02061" @default.
- W4296799314 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36149007" @default.
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