Photochemistry of tricarbonyl(η4-cyclo-octatetraene)iron in a methane matrix at 12 K. Infrared spectroscopic evidence for photoisomerisation and carbon monoxide ejection reactions
Identifieur interne : 004A91 ( Istex/Checkpoint ); précédent : 004A90; suivant : 004A92Photochemistry of tricarbonyl(η4-cyclo-octatetraene)iron in a methane matrix at 12 K. Infrared spectroscopic evidence for photoisomerisation and carbon monoxide ejection reactions
Auteurs : Ramli B. Hitam ; Ramaier Narayanaswamy ; Antony J. RestSource :
- Journal of the Chemical Society, Dalton Transactions [ 0300-9246 ] ; 1983.
Abstract
Fourier-transform infrared spectroscopic evidence, including 13CO labelling and energy-factored CO force-field fitting, is presented to show that photolysis of [Fe(‘tub’-η4-C8H8)(CO)3] in a CH4 matrix at 12 K leads to the formation of a [Fe(‘chair’-η4-C8H8)(CO)3] species via the [Fe(η2-C8H8)(CO)3] intermediate. An additional photoproduct is the co-ordinatively unsaturated species [Fe(η4-C8H8)(CO)2] formed by photoelimination of a CO ligand. The results are related to the fluxional behaviour of [Fe(η4-C8H8)(CO)3] in solution.
Url:
DOI: 10.1039/DT9830001351
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