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- W1994399485 abstract "Urea undergoes O-protonation in the gas phase to yield a product that is thermodynamically more stable than the N-protonated isomer, as also is the case in aqueous solution. The proton affinity and gas-phase basicity of urea, determined by using the kinetic method, are 873.5 ± 5.0 and 841.6 ± 5.0 kJ/mol, respectively. These values are in excellent agreement with G2(MP2) calculations, which give PA = 872.4 kJ/mol. The entropy requirements for the competitive dissociation channels of the proton-bound heterodimers of urea and the chosen reference compounds are measured and lead to the conclusion that urea and these references have almost equal protonation entropies (Δ(ΔS°) = 0.80 J/kmol). In comparison with proton affinities of acetone and acetamide, the proton affinity of urea is understandably enhanced by resonance stabilization in both neutral and protonated urea, and an upper limit to the PA value is established by a resonance saturation effect. These considerations provide a basis for the explanation of some aspects of the reactivity of urea." @default.
- W1994399485 created "2016-06-24" @default.
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- W1994399485 creator A5062346634 @default.
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- W1994399485 date "1998-04-01" @default.
- W1994399485 modified "2023-10-14" @default.
- W1994399485 title "Proton Affinity and Gas-Phase Basicity of Urea" @default.
- W1994399485 cites W1964032611 @default.
- W1994399485 cites W1964675076 @default.
- W1994399485 cites W1966874967 @default.
- W1994399485 cites W1967440314 @default.
- W1994399485 cites W1968317155 @default.
- W1994399485 cites W1968320442 @default.
- W1994399485 cites W1969863143 @default.
- W1994399485 cites W1972625478 @default.
- W1994399485 cites W1972873679 @default.
- W1994399485 cites W1973356778 @default.
- W1994399485 cites W1975132623 @default.
- W1994399485 cites W1976345095 @default.
- W1994399485 cites W1977227054 @default.
- W1994399485 cites W1981663765 @default.
- W1994399485 cites W1983066351 @default.
- W1994399485 cites W1983271858 @default.
- W1994399485 cites W1983438909 @default.
- W1994399485 cites W1984523587 @default.
- W1994399485 cites W1987565207 @default.
- W1994399485 cites W1993449809 @default.
- W1994399485 cites W1996222219 @default.
- W1994399485 cites W1997920106 @default.
- W1994399485 cites W1998211279 @default.
- W1994399485 cites W1998862337 @default.
- W1994399485 cites W2003401531 @default.
- W1994399485 cites W2003410184 @default.
- W1994399485 cites W2004006901 @default.
- W1994399485 cites W2004184608 @default.
- W1994399485 cites W2006591062 @default.
- W1994399485 cites W2007545152 @default.
- W1994399485 cites W2007968374 @default.
- W1994399485 cites W2010174156 @default.
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- W1994399485 cites W2034639888 @default.
- W1994399485 cites W2038892976 @default.
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- W1994399485 cites W2053552791 @default.
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- W1994399485 cites W2147791364 @default.
- W1994399485 cites W2158435561 @default.
- W1994399485 cites W2318027287 @default.
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- W1994399485 doi "https://doi.org/10.1021/jp9804493" @default.
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