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- W2016126843 abstract "Abstract Unstable π-propene-metal complexes are formed when excess propene is co-condensed with atomic nickel or magnesium. During the formation and decomposition of these complexes, the ligand undergoes a double-bond isomerization by a 1,3-hydrogen shift. Infrared and mass spectroscopic data from CD 3 CH CH 2 /metal complexes show metal-induced, sequential, intramolecular, hydrogen exchange reactions: CD 3 CHCH 2 → CH 2 DCHCD 2 → cis -CHD 2 2CHCHD → trans -CHD 2 CHCHD. No π-allyl species is observed during these reactions. The low decomposition temperatures of π-propene-nickel and -magnesium complexes (both about −140 °C) and the low isomerization activation energies (less than ∼0.5 kcal/mol) suggest direct formation of isomerization products from the π-propenes without the intervention of any allyl intermediates. The π-propene may also be the only surface species necessary to account for the products in isomerization, hydrogen exchange and hydrogenation reactions of propene on zinc oxide catalyst." @default.
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- W2016126843 date "1982-03-01" @default.
- W2016126843 modified "2023-09-27" @default.
- W2016126843 title "Structure of propene in heterogeneous catalysis II. Isomerization of propene by atomic nickel and magnesium" @default.
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- W2016126843 doi "https://doi.org/10.1016/0021-9517(82)90004-5" @default.
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