The Journal of Physical Chemistry A
ARTICLE
’ CONCLUSION
’ REFERENCES
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The o-amino conjugation effect on the radiative and radia-
tionless decays of trans-aminostilbenes is uncovered in this
work on the basis of o1R (R = H, Me, OM, and CN) and o2.
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viously established,10 our results show that amino conjuga-
tion substitutions do not alter this nature in these DꢀA typed
π-conjugated systems. The character of strong fluorescence
and long fluorescence lifetimes in polar solvents for the ortho
systems might prove of value in forming novel fluorescent
chemosensory materials.39
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’ ASSOCIATED CONTENT
(13) Lai, W.-Y.; Xia, R.; Bradley, D. D. C.; Huang, W. Chem.—Eur. J.
2010, 16, 8471–8479.
S
Supporting Information. Detailed synthetic procedures
b
and characterization data for new compounds, solvatofluoro-
chromic plots, DFT-optimized ground and excited state struc-
tures, Cartesian coordinates, and energies, more fluorescence
decay times for o1Me, o1OM, and o1CN, and TDDFT-derived
excited descriptions of o1R and 2. This material is available free
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’ AUTHOR INFORMATION
Corresponding Author
*E-mail: jsyang@ntu.edu.tw.
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’ ACKNOWLEDGMENT
We thank the National Science Council of Taiwan for financial
support. The computing time granted by the National Center for
High-Performance Computing and the Computing Center of
NTU is acknowledged.
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Soc. 2004, 126, 12325–12335.
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dx.doi.org/10.1021/jp200774g |J. Phys. Chem. A 2011, 115, 3233–3242