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- W2132678221 abstract "Combined anion photoelectron spectroscopy and relativistic quantum chemical studies are conducted on nucleobase–Au2− cluster anions. The vertical detachment energies of uracil–Au2− (UAu2−), thymine–Au2− (TAu2−), cytosine–Au2− (CAu2−), adenine–Au2− (AAu2−), guanine–Au2− (GAu2−) are determined to be 2.71 ± 0.08 eV, 2.74 ± 0.08 eV, 2.67 ± 0.08 eV, 2.65 ± 0.08 eV and 2.73 ± 0.08 eV, respectively, based on the measured photoelectron spectra. Through computational geometry optimizations we have identified the lowest-energy structures of these nucleobase–Au2− cluster anions. The structures are further confirmed by comparison of theoretically calculated vertical and adiabatic electron detachment energies with experimental measurements. The results reveal that the Au2− anion remains as an intact unit and interacts with the nucleobases through N–H⋯Au or C–H⋯Au nonconventional hydrogen bonds. The nucleobase–Au2− cluster anions have relatively weak N–H⋯Au hydrogen bonds and strong C–H⋯Au hydrogen bonds compared to those of nucleobase–Au− anions." @default.
- W2132678221 created "2016-06-24" @default.
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- W2132678221 date "2014-01-01" @default.
- W2132678221 modified "2023-10-17" @default.
- W2132678221 title "Theoretical and experimental studies of the interactions between Au2− and nucleobases" @default.
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- W2132678221 doi "https://doi.org/10.1039/c3cp54478h" @default.
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