Structures and electron affinities of indole-(water)N clusters

S. Carles, C. Desfrançois, J. P. Schermann, D. M A Smith, Ludwik Adamowicz

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Rydberg electron transfer spectroscopy (RET) has been used to determine the dipole-bound electron affinity of the indole molecule, and the value of 3 meV was obtained. RET has also been employed to study [indole-(water)N]- cluster anions and the results have been interpreted with the help of ab initio calculations. It has been shown that for N = 1 and 2 only dipole-bound anions are formed and that the electron attachment induces large amplitude motions in these systems. [Indole-(water)N]- anions with N = 3 and 4 have not been observed. This finding for N = 3 is consistent with a low theoretically predicted dipole moment of the neutral indole-(water)3 complex, which is insufficient for the formation of a stable dipole-bound anion. Above N = 5, RET experiments showed formation of valence [indole-(water)N]- anions. From the observed size threshold for the formation of these anions, the negative value of the valence electron affinity of indole equal to - 1.03±0.05 meV was deduced.

Original languageEnglish (US)
Pages (from-to)3726-3734
Number of pages9
JournalThe Journal of Chemical Physics
Volume112
Issue number8
StatePublished - Feb 22 2000

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Electron affinity
indoles
electron affinity
Anions
affinity
anions
Water
water
electron transfer
Electrons
Spectroscopy
dipoles
spectroscopy
valence
electron attachment
Dipole moment
indole
dipole moments
Molecules
thresholds

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Carles, S., Desfrançois, C., Schermann, J. P., Smith, D. M. A., & Adamowicz, L. (2000). Structures and electron affinities of indole-(water)N clusters. The Journal of Chemical Physics, 112(8), 3726-3734.

Structures and electron affinities of indole-(water)N clusters. / Carles, S.; Desfrançois, C.; Schermann, J. P.; Smith, D. M A; Adamowicz, Ludwik.

In: The Journal of Chemical Physics, Vol. 112, No. 8, 22.02.2000, p. 3726-3734.

Research output: Contribution to journalArticle

Carles, S, Desfrançois, C, Schermann, JP, Smith, DMA & Adamowicz, L 2000, 'Structures and electron affinities of indole-(water)N clusters', The Journal of Chemical Physics, vol. 112, no. 8, pp. 3726-3734.
Carles S, Desfrançois C, Schermann JP, Smith DMA, Adamowicz L. Structures and electron affinities of indole-(water)N clusters. The Journal of Chemical Physics. 2000 Feb 22;112(8):3726-3734.
Carles, S. ; Desfrançois, C. ; Schermann, J. P. ; Smith, D. M A ; Adamowicz, Ludwik. / Structures and electron affinities of indole-(water)N clusters. In: The Journal of Chemical Physics. 2000 ; Vol. 112, No. 8. pp. 3726-3734.
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