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Photochemistry of (/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 3/Br: Spectroscopic evidence for the intermediates (/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 2/Br and ((/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 2/(/mu/-Br))/sub 2/

Journal Article · · Organometallics; (United States)
DOI:https://doi.org/10.1021/om00098a022· OSTI ID:5775358
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The authors present here the results of an investigation of the photochemistry of (/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 3/Br. Irradiation of an equilibrium mixture of endo-(/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 3/Br and exo-(/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 3/Br at room temperature in solution results in enrichment of the mixture in exo-(/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 3/Br. Irradiation of (/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 3/Br in a low-temperature matrix demonstrates that the primary photoprocess is loss of CO. Photolysis of (/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 3/Br in the absence of reactive molecules yields a species which they have characterized by IR, /sup 1/H NMR, and mass spectrometry and assigned to be ((/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 2/(/mu/-Br))/sub 2/. ((/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 2/(/mu/-Br))/sub 2/ reacts with CO yielding exo-(/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 3/Br which thermally reverts to endo-(/eta//sup 3/-C/sub 3/H/sub 5/)Ru(CO)/sub 3/Br.

Research Organization:
Massachusetts Institute of Technology, Cambridge (USA)
OSTI ID:
5775358
Journal Information:
Organometallics; (United States), Journal Name: Organometallics; (United States) Vol. 7:8; ISSN ORGND
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CARBONYLS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
DATA
DECOMPOSITION
DISPERSIONS
EXPERIMENTAL DATA
HYDROGEN 1
HYDROGEN ISOTOPES
INFORMATION
INFRARED SPECTRA
ISOMERS
ISOTOPES
KINETICS
LIGHT NUCLEI
MAGNETIC RESONANCE
MASS SPECTROSCOPY
MATRIX ISOLATION
MEDIUM TEMPERATURE
MIXTURES
NMR SPECTRA
NUCLEAR MAGNETIC RESONANCE
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
OXIDES
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOCHEMISTRY
PHOTOLYSIS
REACTION INTERMEDIATES
REACTION KINETICS
RESONANCE
RUTHENIUM COMPLEXES
SOLUTIONS
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES