X-ray photoelectron study of mixed valence metatungstate anions

✍ Scribed by L.P. Kazansky; J.P. Launay

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 366 KB
• Volume: 51
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(77)80393-x

✦ Synopsis

and of reduced derivatives with 5, 12, and 24 electrons have been recorded. IV{40 signals are consistent with the presence of tetravalent tungsten in the reduced species. In particular the 12Fderivative does not contain WV but WIv and WV1 _ m equal amounts. Valence band spectra show the W(Sd) levels near 2 eV in reduced forms, this energy being appreciably lower than in W bronzes and WO2. This can be correlated with the relative inertness of reduced metatungstates towards oxidation.