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- W4291009826 abstract "The kinetics of electron attachment to pyruvic acid (CH3COCOOH) and thermal detachment from the resulting parent anion were measured from 300-515 K using a flowing afterglow─Langmuir probe apparatus. An adiabatic electron affinity (EA) for pyruvic acid was derived, 0.84 ± 0.02 eV. Electron attachment rate constants to pyruvic acid of 2.1 × 10-8 and 1.2 × 10-8 were measured at 300 and 400 K, respectively. Rate constants at higher temperatures are less well-defined due to possible contributions from attachment to zymonic open ketone, an endemic impurity in pyruvic acid. Similarly, unimolecular detachment rates are complicated by secondary proton transfer reaction of the pyruvic acid anion with pyruvic acid to yield an 87 Da anion. The possible contributions from these chemistries are considered, and in all cases the equilibrium constant between attachment and detachment remains well-defined, allowing for determination of the EA." @default.
- W4291009826 created "2022-08-13" @default.
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- W4291009826 date "2022-08-11" @default.
- W4291009826 modified "2023-09-27" @default.
- W4291009826 title "Thermal Electron Attachment to Pyruvic Acid, Thermal Detachment from the Parent Anion, and the Electron Affinity of Pyruvic Acid" @default.
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- W4291009826 doi "https://doi.org/10.1021/acs.jpca.2c04036" @default.
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