Mossbauer and infrared studies of matrix-isolated iron-carbonyl complexes

Journal Article · Thu Jun 23 04:00:00 EDT 1983 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100236a019· OSTI ID:5304226

Peden, C H.F.; Parker, S F; Barrett, P H; Pearson, R G

The matrix-isolated binary carbonyls, Fe(CO)/sub x/, x greater than or equal to 5, and Fe/sub 2/(CO)/sub y/, y=8,9, formed upon cocondensation of iron atoms with noble gas/CO gas mixtures have been investigated by infrared and Mossbauer spectroscopies.Assignments for the Mossbauer absorptions of these species are made. New information on the C-O stretching frequencies of Fe(CO) and Fe(CO)/sub 2/ has been obtained. The very low infrared stretching frequency (1898 cm/sup -1/) and the negative Mossbauer isomer shift (-0.60 mm/s) of Fe(CO) are evidence for a large d..pi --> pi..* interaction for this fragment.

• Research Organization: Univ. of California, Santa Barbara
• DOE Contract Number: AM03-76SF00034
• OSTI ID: 5304226
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 87:13; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALIGNED COUPLING SCHEME
CARBONYLS
CHEMICAL ANALYSIS
CHEMICAL SHIFT
COMPLEXES
INFRARED SPECTRA
IRON COMPLEXES
MOESSBAUER EFFECT
SPECTRA
TRANSITION ELEMENT COMPLEXES