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Excitation Localization/Delocalization Isomerism in a Strongly Coupled Covalent Dimer of 1,3-Diphenylisobenzofuran
Date
2016-05-26
Author
Schrauben, Joel N.
Akdağ, Akın
Wen, Jin
Havlas, Zdenek
Ryerson, Joseph L.
Smith, Millie B.
Michl, Josef
Johnson, Justin C.
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Two isomers of both the lowest excited singlet (S-1) and triplet (T-1) states of the directly para, para'-connected covalent dimer of the singlet-fission chromophore 1,3-diphenylisobenzofuran have been observed. In one isomer, excitation is delocalized over both halves of the dimer, and in the other, it is localized on one or the other half. For a covalent dimer in solution, such "excitation isomerism" is extremely rare. The vibrationally relaxed isomers do not interconvert, and their photophysical properties, including singlet fission, differ significantly.
Subject Keywords
Physical and Theoretical Chemistry
URI
https://hdl.handle.net/11511/39355
Journal
JOURNAL OF PHYSICAL CHEMISTRY A
DOI
https://doi.org/10.1021/acs.jpca.6b00826
Collections
Department of Chemistry, Article
Citation Formats
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BibTeX
J. N. Schrauben et al., “Excitation Localization/Delocalization Isomerism in a Strongly Coupled Covalent Dimer of 1,3-Diphenylisobenzofuran,”
JOURNAL OF PHYSICAL CHEMISTRY A
, vol. 120, no. 20, pp. 3473–3483, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39355.