【摘 要】
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Extensive DFT calculations are performed to optimize the geometric structures of O-rich tungsten oxide clusters, to simulate the PES spectra, and to analyze the
【机 构】
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Department of Chemistry, Fuzhou University,Fuzhou, Fujian 350002, China, State Key Laboratory of St
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Extensive DFT calculations are performed to optimize the geometric structures of O-rich tungsten oxide clusters, to simulate the PES spectra, and to analyze the chemical bonding. The ground-state structure of W4O14-is best considered as W4O12(O2-), containing a side-on bound superoxide ligand. The current study indicates that the extra electron in W4O12-is capable of activating dioxygen by non-dissociative electron transfer (W 5d → O2 π*), and the anionic clusters can be viewed as models for reduced defect sites on tungsten oxide surfaces for the chemisorption of O2.
Extensive DFT calculations are performed to optimize the geometric structures of O-rich tungsten oxide clusters, to simulate the PES spectra, and to analyze the chemical bonding. The ground-state structure of W4O14-is best considered as W4O12 (O2-), containing The current study indicates that the extra electron in W4O12-is capable of activating dioxygen by non-dissociative electron transfer (W 5d → O2 π *), and the anionic clusters can be viewed as models for reduced defect sites on tungsten oxide surfaces for the chemisorption of O2.
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