Infrared spectra of matrix isolated FeO2: Evidence for a cyclic iron-oxygen complex

✍ Scribed by Stanley Abramowitz; Nicolo Acquista; Ira W. Levin

• Book ID: 103019383
• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 435 KB
• Volume: 50
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(77)80357-6

✦ Synopsis

Infrared matrix isolation techniques were used to study the reaction of I-c(vopor) with oxygen molecules. For various isotopically enriched oxygen samples. spectral transitions at 945.9.930.8 and 911.4 cm-' were assigned on the b&s of their relatively large frequency shifts to the O-O stretching modes of i'e'602, Fe'60180 ,md Fe'*Oz, respectively. The low frequency Fe-O stretching modes were ass&d to features at 5 17.1,508.1

and 494.0 cm-' for the same three isotopically substituted dioxygen complexes.

Both the frequency behavior and intensity patterns involving the dioxygen ligand indicate a cyclic isosccles model for the Fe02 system.