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• W2985246740 endingPage "325" @default.
• W2985246740 startingPage "316" @default.
• W2985246740 abstract "A series of π-extended mono- and bis-BODIPY (BODIPY=boron-dipyrromethene) derivatives, namely, benzo[a]phenanthrene-fused BODIPY (Phena-Mono-BDP), benzo[a]anthracene-fused BODIPY (Ant-Mono-BDP), and dibenz[a,h]anthracene (DBA)-bridged bis-BODIPY (Ant-Bis-BDP), were designed and synthesized to examine their structural, electrochemical, and photophysical properties. Single-crystal X-ray crystallographic analyses demonstrated the planar configuration of Ant-Mono-BDP, in contrast to that of nonplanar Phena-Mono-BDP, whereas Ant-Bis-BDP has a DBA-centered planar configuration and two terminal nonplanar units of BODIPYs. The oxidation and reduction potentials agree with the estimated energies obtained through DFT calculations. The localized HOMO and LUMO states suggested the intramolecular charge-transfer characteristics in these BODIPY derivatives. The absorption spectra of these compounds extended up to the near-IR region. Strong redshifted trends of fluorescence spectra were observed in Ant-Bis-BDP with increasing solvent polarity, as supported by the differences in dipole moments estimated from Lippert-Mataga plots. To evaluate the excited-state dynamics of these molecules, the fluorescence quantum yield (ΦFL ) of Ant-Bis-BDP dramatically increased in the range from 0.05 to 0.86, with decreasing solvent polarity. Finally, the efficient two-photon absorption cross section of Ant-Bis-BDP (ca. 1200 GM at λ=1000 nm) was also obtained by considering the large π-extended structure (acceptor-donor-acceptor type)." @default.
• W2985246740 created "2019-11-22" @default.
• W2985246740 creator A5028104394 @default.
• W2985246740 creator A5040842731 @default.
• W2985246740 creator A5063953316 @default.
• W2985246740 creator A5075725763 @default.
• W2985246740 creator A5086400005 @default.
• W2985246740 date "2019-12-09" @default.
• W2985246740 modified "2023-10-13" @default.
• W2985246740 title "Systematic Control of Structural and Photophysical Properties of π‐Extended Mono‐ and Bis‐BODIPY Derivatives" @default.
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