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- W2032258832 abstract "Threshold energies for the proton transfer reaction C4H−+C2H2 → C4H2+C2H− and for competitive collision-induced dissociation of the proton-bound complex of diacetylide and acetaldehyde, [HC4··H··CH2CHO]−, are measured using guided ion beam tandem mass spectrometry. From the bimolecular proton transfer threshold, the gas-phase acidity of diacetylene is ΔacidH0(C4H2)≥1500±8 kJ/mol as a lower limit. The competitive dissociation is modeled using RRKM theory, yielding ΔacidH0(C4H2)=1508±12 kJ/mol. Using the literature electron affinity of C4H, the derived bond dissociation energy of diacetylene is D0(HC4–H)=539±12 kJ/mol." @default.
- W2032258832 created "2016-06-24" @default.
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- W2032258832 date "2000-02-01" @default.
- W2032258832 modified "2023-10-16" @default.
- W2032258832 title "Gas-phase acidity and C–H bond energy of diacetylene" @default.
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- W2032258832 doi "https://doi.org/10.1016/s0009-2614(00)00023-3" @default.
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