Mechanism of hydrogenation of ethylene via photoproduced unsaturated iron carbonyl in the gas phase

Journal Article · Wed Jan 23 23:00:00 EST 1991 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100155a049· OSTI ID:5887134

Onda, Ken; Takahashi, Makoto ^[1]; Ishikawa, Yoishi; Sugita, Kyoko; Tanaka, Kazunori; Arai, Shigeyoshi ^[2]; Rayner, D M; Hackett, P A ^[3]

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1. International Christian Univ., Tokyo (Japan)
2. Institute of Physical and Chemical Research, Saitama (Japan)
3. National Research Council of Canada, Ottawa, Ontario (Canada)

The hydrogenation of ethylene via photoproduced coordinatively unsaturated iron carbonyls in the gas phase has been investigated by measuring deuterium distribution in ethanes produced following photolysis of mixtures of Fe(CO){sub 5}, C{sub 2}H{sub 4}, and hydrogen (D{sub 2} or D{sub 2}/H{sub 2}) by monochromatic CW-UV light (ca. 250 nm). When mixtures of Fe(CO){sub 5}, C{sub 2}H{sub 4}, and D{sub 2} are photolyzed, only ethane-1,2-d{sub 2} and ethane-1,1-d{sub 2} are produced. The ratio of ethane-1,2-d{sub 2} to ethane-1,1-d{sub 2}, ranges from 1.5 to 1.9 but does not depend on the irradiation time. When a mixture containing Fe(CO){sub 5}, C{sub 2}H{sub 4}, H{sub 2}, and D{sub 2} was photolyzed, the only additional product was C{sub 2}H{sub 6}. Ethane-d{sub 1} was not observed. These results suggest that both deuterated ethanes are produced in the primary hydrogenation process and that one ethylene molecule reacts with one hydrogen molecule on the metal. Possible hydrogenation mechanisms are discussed in light of the observed results.

• OSTI ID: 5887134
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 95:2; ISSN JPCHA; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
ALKENES
CARBONYLS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
ETHYLENE
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGENATION
INFORMATION
INFRARED SPECTRA
IRON COMPOUNDS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
SPECTRA
TRANSITION ELEMENT COMPOUNDS