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• W1994938248 abstract "A theoretical investigation of the substituent effects on the two-center, three-electron (2c-3e) bond involved between unsaturated functional groups and an amine nitrogen is presented. The competitive hydrogen-bonded complexes are also studied. In both cases, the bond energies are found to be in the range of 20-30 kcal mol(-1). The variation of these energies is discussed with respect to the electron-donating effect of the substitutents, as well as with respect to the alpha-bonded atom of the organic functional group (O, S, NH). For the 2c-3e bonds, the results are discussed on the basis of the differences of the ionization potential (delta IP) of the separated fragments and can be rationalized through the valence bond theory. For the hydrogen bonds, the substituent influence is discussed by using the differences of the proton affinities (delta PA) of the substrates. The resonating nature of the hydrogen bond in these cationic systems is investigated and is found to account for most of the binding energy. Marcus theory is compared with the proposed resonating model." @default.
• W1994938248 created "2016-06-24" @default.
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• W1994938248 date "2000-05-02" @default.
• W1994938248 modified "2023-10-05" @default.
• W1994938248 title "Substituent Effects on Two-Center Three-Electron Bonds and Hydrogen Bonds Involving Unsaturated Organic Functional Groups and an Ammonia Radical Cation-The Resonance Contribution" @default.
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• W1994938248 doi "https://doi.org/10.1002/(sici)1521-3765(20000502)6:9<1592::aid-chem1592>3.3.co;2-n" @default.
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