Ionized aminohydroxycarbene and its isomers: relative stability and unimolecular reactivity

Abstract : Ab initio molecular orbital calculations at the G2(MP2,SVP) level have been employed to explore a large part of the [H-3, C, N, O](.+) potential energy surface. Ionized aminohydroxycarbene, NH2-C.+-OH, 1, is found to correspond to the global minimum of the surface. The other stable species are also unconventional structures: ion-neutral complexes OC . . . NH3+., 2 and CO . . . NH3+., 2', and the distonic ion, (H3N+CO)-O-., 3. The more classical structures [HCONH2](.+), 4, and [HC(OH)NH](.+), 5 are higher in energy. The heat of formation of the five radical cations have been determined using their atomization energies. The various isomerization reactions connecting 1-5 as well as their dissociation by H or CO losses have been theoretically investigated and compared with the available experimental data. (C) 2001 Elsevier Science B.V. All rights reserved.
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Guy Bouchoux, Agathe Espagne. Ionized aminohydroxycarbene and its isomers: relative stability and unimolecular reactivity. Chemical Physics Letters, Elsevier, 2001, 348 (3-4), pp.329-336. ⟨10.1016/S0009-2614(01)01117-4⟩. ⟨hal-00918621⟩

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