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- W2313434634 abstract "Benzophenone derivatives (BZP), an important class of organic UV filters, are widely used in sunscreen products due to their ability to absorb in the UVA and UVB ranges. The structural, electronic, and spectral properties of BZP derivatives have been studied by density functional theory (DFT) and time-dependent DFT (TD-DFT) methods. DFT/B3LYP with the 6-31G(d) basis set is an accurate method for optimizing the geometry of BZPs. The absorption maxima obtained from the TD-DFT calculations in a vacuum were in agreement with the experimental absorption bands and showed that the main electronic transitions in the UVA/UVB range present π → π* character, the major transition being HOMO → LUMO. The oscillator strength seems to increase in the presence of disubstitution at the para position. For protic substituents, the position appears to be related to the absorption band. Absorption in the UVB range occurs in the presence of para substitution, whereas ortho substitution leads to absorption in the UVA spectral region. The obtained results provide some features for BZP derivatives that can be useful for customizing absorption properties (wavelengths and intensities) and designing new BZP derivatives as sunscreens." @default.
- W2313434634 created "2016-06-24" @default.
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- W2313434634 date "2012-11-01" @default.
- W2313434634 modified "2023-09-26" @default.
- W2313434634 title "Molecular Modeling Studies of the Structural, Electronic, and UV Absorption Properties of Benzophenone Derivatives" @default.
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- W2313434634 doi "https://doi.org/10.1021/jp306130y" @default.
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