Correlating the Structural and Photophysical Properties of Ortho , Meta , and Para -Carboranyl–Anthracene Dyads
AuthorsMarsh, Adam V.
Dyson, Matthew J.
Cheetham, Nathan J.
White, Andrew J. P.
Warriner, Colin N.
Swain, Anthony C.
Stavrinou, Paul N.
Meskers, Stefan C. J.
KAUST DepartmentChemical Science Program
KAUST Solar Center (KSC)
Physical Science and Engineering (PSE) Division
Online Publication Date2020-06-23
Print Publication Date2020-08
Permanent link to this recordhttp://hdl.handle.net/10754/663896
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AbstractThe role of the carborane isomer is investigated on the structural and photophysical properties of molecules comprising a carborane cluster and a conjugated organic moiety is investigated by synthesizing isomeric o -, m -, and p -carboranyl-anthracene donor–acceptor dyads. While appending a carborane leads to emission from a low energy intramolecular charge transfer state for the o -isomer, as well as emission from an excited state localized on the anthracene, this is not the case for the m - and p -carborane derivatives. This difference is attributed to a lower electron affinity for the latter two isomers. However, adding both m - and p - deforms the aromatic backbone and increases its structural rigidity, reducing non-radiative decay pathways and hence enhancing photoluminescence quantum efficiency relative to anthracene.
CitationMarsh, A. V., Dyson, M. J., Cheetham, N. J., Bidwell, M., Little, M., White, A. J. P., … Heeney, M. (2020). Correlating the Structural and Photophysical Properties of Ortho , Meta , and Para -Carboranyl–Anthracene Dyads. Advanced Electronic Materials, 2000312. doi:10.1002/aelm.202000312
SponsorsThe authors thank the EPRSC for funding (EP/G037515/1 & EP/ L016702/1) and AWE for their input and ﬁnancial support of A.V.M. The authors also thank the Marie Skłodowska-Curie Actions Innovative Training Networks “H2020-MSCA-ITN-2014 INFORM-675867” for funding.
JournalAdvanced Electronic Materials
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