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- W4317840210 abstract "Abstract For better understanding the intrinsic reactivity of organozinc reagents, we have examined the protolysis of the isolated zincate ions Et 3 Zn − , Et 2 Zn(OH) − , and Et 2 Zn(OH) 2 Li − by 2,2,2‐trifluoroethanol in the gas phase. The protonation of the hydroxy groups and the release of water proceed much more efficiently than the protonation of the ethyl groups and the liberation of ethane. Quantum‐chemical computations and statistical‐rate theory calculations fully reproduce the experimental findings and attribute the lower reactivity of the more basic ethyl moiety to higher intrinsic barriers, which override the thermodynamic preference for its protonation. Thus, our minimalistic gas‐phase model provides evidence for the intrinsically low reactivity of organozinc reagents toward proton donors and helps to explain their remarkable kinetic stability against moisture and even protic media." @default.
- W4317840210 created "2023-01-24" @default.
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- W4317840210 date "2023-03-16" @default.
- W4317840210 modified "2023-10-15" @default.
- W4317840210 title "C versus O Protonation in Zincate Anions: A Simple Gas‐Phase Model for the Surprising Kinetic Stability of Organometallics" @default.
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- W4317840210 doi "https://doi.org/10.1002/chem.202203611" @default.
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