%0 Journal Article %1 Kim_2019 %A Kim, Woojae %A Nowak-Król, Agnieszka %A Hong, Yongseok %A Schlosser, Felix %A Würthner, Frank %A Kim, Dongho %D 2019 %I American Chemical Society (ACS) %J J. Phys. Chem. Lett. %K molecular myown organic %N 8 %P 1919--1927 %R 10.1021/acs.jpclett.9b00357 %T Solvent-Modulated Charge-Transfer Resonance Enhancement in the Excimer State of a Bay-Substituted Perylene Bisimide Cyclophane %U https://doi.org/10.1021%2Facs.jpclett.9b00357 %V 10 %X Excimer, a configurational mixing between Frenkel exciton and charge-transfer resonance states, is typically regarded as a trap state that hinders desired energy or charge-transfer processes in artificial molecular assemblies. However, in recent days, the excimer has received much attention as a functional intermediate in the excited-state dynamics such as singlet fission or charge-separation processes. In this work, we show that the relative contribution to charge-transfer resonance of the excimer state in a bay-substituted perylene bisimide dimer cyclophane can be modulated by dielectric properties of the solvents employed. Solvent-dependent time-resolved fluorescence and absorption measurements reveal that an enhancement of charge-transfer resonance in the excimer state is reflected by incomplete symmetry-breaking charge-separation processes from the structurally relaxed excimer state by means of dipolar solvation processes in the high dielectric environment.

@article{Kim_2019, abstract = {Excimer, a configurational mixing between Frenkel exciton and charge-transfer resonance states, is typically regarded as a trap state that hinders desired energy or charge-transfer processes in artificial molecular assemblies. However, in recent days, the excimer has received much attention as a functional intermediate in the excited-state dynamics such as singlet fission or charge-separation processes. In this work, we show that the relative contribution to charge-transfer resonance of the excimer state in a bay-substituted perylene bisimide dimer cyclophane can be modulated by dielectric properties of the solvents employed. Solvent-dependent time-resolved fluorescence and absorption measurements reveal that an enhancement of charge-transfer resonance in the excimer state is reflected by incomplete symmetry-breaking charge-separation processes from the structurally relaxed excimer state by means of dipolar solvation processes in the high dielectric environment.}, added-at = {2019-05-08T10:15:55.000+0200}, author = {Kim, Woojae and Nowak-Król, Agnieszka and Hong, Yongseok and Schlosser, Felix and Würthner, Frank and Kim, Dongho}, biburl = {https://www.bibsonomy.org/bibtex/2db1a577187d117d25d92b88c60c848ef/wuerthner_group}, doi = {10.1021/acs.jpclett.9b00357}, interhash = {38a65cdf24809eb9228adc68eff779f5}, intrahash = {db1a577187d117d25d92b88c60c848ef}, journal = {J. Phys. Chem. Lett.}, keywords = {molecular myown organic}, month = mar, number = 8, pages = {1919--1927}, publisher = {American Chemical Society (ACS)}, timestamp = {2023-05-23T13:21:01.000+0200}, title = {Solvent-Modulated Charge-Transfer Resonance Enhancement in the Excimer State of a Bay-Substituted Perylene Bisimide Cyclophane}, url = {https://doi.org/10.1021%2Facs.jpclett.9b00357}, volume = 10, year = 2019 }