@Article{JAMS-9-33,
author = {Songqiu Yang and Jianyong Liu},
title = {The Solvent Effects on the Energy Gap Between the $n\pi^*$ State and $\pi\pi^*$ State and Fluorescence of Benzoyleneurea},
journal = {Journal of Atomic and Molecular Sciences},
year = {2019},
volume = {9},
number = {3},
pages = {33--38},
abstract = {<p style="text-align: justify;">Benzoyleneurea (BenzU), a fluorescent nucleobase analog, exhibits strong solvent dependent
fluorescence intensity. With the increasing of the concentration of polar and protic solvents, BenzU exhibits
enhanced fluorescence. To understand the photophysical properties of BenzU, the energy gaps (ΔE) between
dark $n\pi^*$ state and bright $\pi\pi^*$ state of BenzU are calculated in several solvents. The solvent dielectric
constant and hydrogen bond between BenzU and protic solvent both have effects on ΔE. And the
fluorescence quantum yields of BenzU are linear response to ΔE. Furthermore, we find that the more
hydrogen bonds are formed between BenzU and protic solvent, the higher ΔE and fluorescence intensity are
obtained.</p>},
issn = {2079-7346},
doi = {https://doi.org/10.4208/jams.100818.112418a},
url = {http://global-sci.org/intro/article_detail/jams/12998.html}
}