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Raman spectroscopic study of iron pentacarbonyl on silver at elevated temperatures
Author(s) -
Yamatake K.,
Tanabe T.,
Suzuki Y.,
Matsumoto Y.,
Wadayama T.,
Hatta A.
Publication year - 1998
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/(sici)1097-4555(199809)29:9<781::aid-jrs300>3.0.co;2-1
Subject(s) - raman spectroscopy , irradiation , analytical chemistry (journal) , iron pentacarbonyl , chemistry , monolayer , argon , photochemistry , inorganic chemistry , optics , biochemistry , physics , organic chemistry , chromatography , nuclear physics
The thermal reaction of Fe(CO) 5 on evaporated silver films was studied in an atmosphere of argon using Raman spectroscopy. The C–O stretch bands of Fe(CO) 5 condensed at 123 K decrease significantly in intensity after 5 min of UV irradiation (254 nm) with no appearance of new bands, but further UV irradiation causes little change in the band intensities, suggesting that a monolayer of Fe(CO) 5 is formed on the surface by the initial UV exposure. Upon heating the sample to 204–213 K without UV irradiation, a distinct Raman spectrum is observed in the ν(C–O) region. Heating the sample to 270 K leads to further spectral changes. Possible species and structures which can explain these Raman spectra are discussed. © 1998 John Wiley & Sons, Ltd.