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- W2008489595 abstract "The present paper discusses a process by which C4 and C5 alkane isomerization may occur at a platinum surface. The model proposes that the surface precursor is 1,3-diadsorbed with a double bond to the surface at one carbon atom [e.g., structure (C), Fig. 2], and that isomerization occurs by the transformation of this to a bridged structure [e.g., structure (D), Fig. 2]. The likelihood of isomerization is discussed in terms of the energy difference between the precursor and the corresponding bridged intermediate. The energies were calculated by a simple Hückel MO method. The effect of methyl group hyperconjugation on facilitating the isomerization is considered explicitly, while the effect of differing electronegativities is discussed qualitatively. It is shown that the energy criterion for isomerization is favorable where there is partial electron transfer from the hydrocarbon residue to the surface metal atom, and this remains possible for finite values of overlap in forming the double bond with the surface metal atom. The model provides a more detailed interpretation for the results obtained previously using C13-labeled n-butane in the isomerization reaction." @default.
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- W2008489595 date "1967-04-01" @default.
- W2008489595 modified "2023-09-27" @default.
- W2008489595 title "The mechanism of isomerization of aliphatic hydrocarbons at a platinum surface" @default.
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- W2008489595 doi "https://doi.org/10.1016/0021-9517(67)90160-1" @default.
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