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Experimental and Theoretical Characterization of Superoxide Complexes [W 2 O 6 (O 2 − )] and [W 3 O 9 (O 2 − )]: Models for the Interaction of O 2 with Reduced W Sites on Tungsten Oxide Surfaces
Author(s) -
Huang Xin,
Zhai HuaJin,
Waters Tom,
Li Jun,
Wang LaiSheng
Publication year - 2006
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200503652
Subject(s) - chemisorption , tungsten , superoxide , oxide , characterization (materials science) , chemistry , electron transfer , content (measure theory) , crystallography , x ray photoelectron spectroscopy , physics , materials science , nanotechnology , organic chemistry , nuclear magnetic resonance , mathematics , enzyme , mathematical analysis , adsorption
Photoelectron spectroscopic analysis and DFT calculations of two O‐rich tungsten oxide clusters [W 2 O 8 ] − and [W 3 O 11 ] − showed these anions are superoxide complexes [W 2 O 6 (O 2 − )] and [W 3 O 9 (O 2 − )]. The data suggest that the clusters [W 2 O 6 ] − and [W 3 O 9 ] − can activate O 2 through a one‐electron transfer to form superoxide, which makes them simple molecular models for the chemisorption of O 2 at reduced defect sites on tungsten oxide surfaces.