Demonstration by 13C NMR spectroscopy of regiospecific carbon-carbon coupling during Fischer-Tropsch probe reactions [1]

Journal of the American Chemical Society

Volumn 121, Issue 27, 1999, Pages 6497-6498

  Mann, Brian E ^a   Turner, Michael L ^a   Quyoum, Ruhksana ^a   Marsih, Nyoman ^a   Maitlis, Peter M ^a  

^a UNIVERSITY OF SHEFFIELD   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

CARBON NUCLEAR MAGNETIC RESONANCE; COVALENT BOND; HYDROGENATION; LETTER; MOLECULAR INTERACTION; STEREOSPECIFICITY;

EID: 0033554019     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja9907313     Document Type: Letter

References (24)

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14. 5X was not incorporated.
15. 5X was not incorporated.
16. 1H NMR for analysis has been reported: Mims, C. A.; McCandlish, L. E. J. Phys. Chem. 1987, 91, 929; Mims, C. A.; McCandlish, L. E.; Melchior, M. T. Catal. Lett. 1988, 1, 121.
17. 1H NMR for analysis has been reported: Mims, C. A.; McCandlish, L. E. J. Phys. Chem. 1987, 91, 929; Mims, C. A.; McCandlish, L. E.; Melchior, M. T. Catal. Lett. 1988, 1, 121.
18. 3 under the same conditions. Identification was also based on the amounts, and the isotopic abundances, of the products analyzed by GC-MS.
19. Marshall, J. L. Carbon-carbon and Carbon-proton NMR Couplings; Verlag Chemie International: Deerfield Beach, Florida, 1983.
20. 13C) was detected.
21. +S.
22. 4-labeled alkenes must also arise similarly.
23. 2 isotopomers from reactions at 190°C over Ru and Rh indicates that secondary processes (1,3-H shifts) become important under these conditions. This also supports die postulated intermediacy of surface alkenyl and surface allylic species in the Fischer -Tropsch reaction (see Figure 3).
24. 2.