Kinetic generation of cis-C[sub 5]H[sub 5](CO)[sub 2]ReH[sub 2] from the reaction of C[sub 5]H[sub 5](CO)[sub 2]Re([mu]-H)Pt(H)(PPh[sub 3])[sub 2] with diphenylacetylene
Journal Article
·
· Inorganic Chemistry; (United States)
- Univ. of Wisconsin, Madison (United States)
Protonation of K[C[sub 5]H[sub 5](CO)[sub 2]ReH] with CF[sub 3]CO[sub 2]H at [minus]78[degrees]C produced a 65:35 mixture of cis-C[sub 5]H[sub 5](CO)[sub 2]ReH[sub 2] (cis-1) and trans-C[sub 5]H[sub 5](CO)[sub 2]ReH[sub 2] (trans-1). At 24[degrees]C, this mixture equilibrated to a 2:98 cis-1:trans-1 mixture. Reaction of C[sub 5]H[sub 5](CO)[sub 2]Re([mu]-H)Pt(H)(PPh[sub 3])[sub 2] (3-Ph) with diphenylacetylene at [minus]9[degrees]C initially produced an 84:16 cis-1:trans-1 mixture. Photolysis of trans-1 in a methylcyclohexane glass at 10 K gave a 40:60 cis-1:trans-1 photostationary state. cis-C[sub 5]H[sub 5](CO)[sub 2]ReHD (cis-1-HD) has an unusual intermediate magnitude of J[sub HD] = 6.5 Hz, which suggested the possibility that cis-1 might be in equilibrium with C[sub 5]H[sub 5](CO)[sub 2]Re([eta][sup 2]-HD) (cis-1-[eta][sup 2]-HD). Howevr, it was not possible to detect measurable amounts of C[sub 5]H[sub 5](CO)[sub 2]Re([eta][sup 2]-H[sub 2]) (cis-1-[eta][sup 2]-H[sub 2]) by IR spectroscopy. 30 refs., 1 fig., 2 tabs.
- OSTI ID:
- 6724601
- Journal Information:
- Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 31:26; ISSN 0020-1669; ISSN INOCAJ
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400500 -- Photochemistry
ALKENES
CARBONYLS
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CYCLOALKENES
CYCLOPENTADIENE
DECOMPOSITION
DEUTERIUM COMPOUNDS
DIENES
EQUILIBRIUM
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
ISOMERS
KINETICS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
POLYENES
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
RHENIUM COMPOUNDS
RHENIUM HYDRIDES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
400201* -- Chemical & Physicochemical Properties
400500 -- Photochemistry
ALKENES
CARBONYLS
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CYCLOALKENES
CYCLOPENTADIENE
DECOMPOSITION
DEUTERIUM COMPOUNDS
DIENES
EQUILIBRIUM
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
ISOMERS
KINETICS
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
POLYENES
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
RHENIUM COMPOUNDS
RHENIUM HYDRIDES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS