MOSSBAUER STUDIES OF IRON ORGANOMETALLIC COMPLEXES. I. IRON TETRACARBONYL COMPLEXES

Journal Article · Sun Dec 15 04:00:00 EST 1963 · Journal of Chemical Physics (U.S.)

DOI:https://doi.org/10.1063/1.1734211· OSTI ID:4126183

Collins, R L; Pettit, R

>Mossbaure absorption spectra at 78 deg K were obtained for a series of compounds of the form R : Fe(CO)/sub 4/, where R includes triphenylphosphine, triethylphosphitc, acenaphthalene, trans-cinnamaldehyde, maleic anhydride, syn- syn-1,3-dimethyl- pi -allyl cation, syn-1 -methyl - pi -allyl cation, pi -allyl cation and I/sub 2/. The isomer shift increases and the electiic quadrupole splitting decreases regularly through this series. The effect is explained in terms of the extent of forward coordination of the ligands, and so forms a basis measuring Lewis basicity of ligands. The compound I/sub 2/ : Fe(CO)/sub 4/ unexpectedly follows the trend, suggesting that appreciable bonding remains between iodine atoms. (auth)

• Research Organization: Univ. of Texas, Austin
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-006815
• OSTI ID: 4126183
• Journal Information: Journal of Chemical Physics (U.S.), Journal Name: Journal of Chemical Physics (U.S.) Vol. Vol: 39; ISSN JCPSA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ALDEHYDES
BINDING ENERGY
CARBONYLS
CATIONS
CHEMISTRY
ELECTRIC FIELDS
ETHYL RADICALS
IODINE
IRON COMPLEXES
ISOMERS
LOW TEMPERATURE
METHYL RADICALS
MOESSBAUER EFFECT
NAPHTHALENE
NUCLEAR MODELS
ORGANIC ACIDS
ORGANOMETALLICS
PHENYL RADICALS
PHOSPHINES
PHOSPHORUS COMPOUNDS
QUADRUPOLES
SPECTRA
SPECTRAL SHIFT