Solvent resonance effect on the anisotropy of N O- (N2 O)n cluster anion photodetachment

Luis Velarde, Terefe Habteyes, Emily R. Grumbling, Kostyantyn Pichugin, Andrei M Sanov

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Photodetachment from N O- (N2 O)n cluster anions (n≤7) is investigated using photoelectron imaging at 786, 532, and 355 nm. Compared to unsolvated N O-, the photoelectron anisotropy with respect to the laser polarization direction diminishes drastically in the presence of the N2 O solvent, especially in the 355 nm data. In contrast, a less significant anisotropy loss is observed for N O- (H2 O)n. The effect is attributed to photoelectron scattering on the solvent, which in the N2 O case is mediated by the Π2 anionic resonance. No anionic resonances exist for H2 O in the applicable photoelectron energy range, in line with the observed difference between the photoelectron images obtained with the two solvents. The momentum-transfer cross section, rather than the total scattering cross section, is argued to be an appropriate physical parameter predicting the solvent effects on the photoelectron angular distributions in these cluster anions.

Original languageEnglish (US)
Article number084302
JournalThe Journal of Chemical Physics
Volume127
Issue number8
DOIs
StatePublished - 2007

Fingerprint

photodetachment
Photoelectrons
Anions
photoelectrons
Anisotropy
anions
anisotropy
Scattering
Momentum transfer
Angular distribution
scattering cross sections
momentum transfer
angular distribution
Polarization
Imaging techniques
Lasers
cross sections
polarization
scattering
lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Solvent resonance effect on the anisotropy of N O- (N2 O)n cluster anion photodetachment. / Velarde, Luis; Habteyes, Terefe; Grumbling, Emily R.; Pichugin, Kostyantyn; Sanov, Andrei M.

In: The Journal of Chemical Physics, Vol. 127, No. 8, 084302, 2007.

Research output: Contribution to journalArticle

Velarde, Luis ; Habteyes, Terefe ; Grumbling, Emily R. ; Pichugin, Kostyantyn ; Sanov, Andrei M. / Solvent resonance effect on the anisotropy of N O- (N2 O)n cluster anion photodetachment. In: The Journal of Chemical Physics. 2007 ; Vol. 127, No. 8.
@article{22efa56c6f564f5689c450e1b2b9b66c,
title = "Solvent resonance effect on the anisotropy of N O- (N2 O)n cluster anion photodetachment",
abstract = "Photodetachment from N O- (N2 O)n cluster anions (n≤7) is investigated using photoelectron imaging at 786, 532, and 355 nm. Compared to unsolvated N O-, the photoelectron anisotropy with respect to the laser polarization direction diminishes drastically in the presence of the N2 O solvent, especially in the 355 nm data. In contrast, a less significant anisotropy loss is observed for N O- (H2 O)n. The effect is attributed to photoelectron scattering on the solvent, which in the N2 O case is mediated by the Π2 anionic resonance. No anionic resonances exist for H2 O in the applicable photoelectron energy range, in line with the observed difference between the photoelectron images obtained with the two solvents. The momentum-transfer cross section, rather than the total scattering cross section, is argued to be an appropriate physical parameter predicting the solvent effects on the photoelectron angular distributions in these cluster anions.",
author = "Luis Velarde and Terefe Habteyes and Grumbling, {Emily R.} and Kostyantyn Pichugin and Sanov, {Andrei M}",
year = "2007",
doi = "10.1063/1.2766948",
language = "English (US)",
volume = "127",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics Publising LLC",
number = "8",

}

TY - JOUR

T1 - Solvent resonance effect on the anisotropy of N O- (N2 O)n cluster anion photodetachment

AU - Velarde, Luis

AU - Habteyes, Terefe

AU - Grumbling, Emily R.

AU - Pichugin, Kostyantyn

AU - Sanov, Andrei M

PY - 2007

Y1 - 2007

N2 - Photodetachment from N O- (N2 O)n cluster anions (n≤7) is investigated using photoelectron imaging at 786, 532, and 355 nm. Compared to unsolvated N O-, the photoelectron anisotropy with respect to the laser polarization direction diminishes drastically in the presence of the N2 O solvent, especially in the 355 nm data. In contrast, a less significant anisotropy loss is observed for N O- (H2 O)n. The effect is attributed to photoelectron scattering on the solvent, which in the N2 O case is mediated by the Π2 anionic resonance. No anionic resonances exist for H2 O in the applicable photoelectron energy range, in line with the observed difference between the photoelectron images obtained with the two solvents. The momentum-transfer cross section, rather than the total scattering cross section, is argued to be an appropriate physical parameter predicting the solvent effects on the photoelectron angular distributions in these cluster anions.

AB - Photodetachment from N O- (N2 O)n cluster anions (n≤7) is investigated using photoelectron imaging at 786, 532, and 355 nm. Compared to unsolvated N O-, the photoelectron anisotropy with respect to the laser polarization direction diminishes drastically in the presence of the N2 O solvent, especially in the 355 nm data. In contrast, a less significant anisotropy loss is observed for N O- (H2 O)n. The effect is attributed to photoelectron scattering on the solvent, which in the N2 O case is mediated by the Π2 anionic resonance. No anionic resonances exist for H2 O in the applicable photoelectron energy range, in line with the observed difference between the photoelectron images obtained with the two solvents. The momentum-transfer cross section, rather than the total scattering cross section, is argued to be an appropriate physical parameter predicting the solvent effects on the photoelectron angular distributions in these cluster anions.

UR - http://www.scopus.com/inward/record.url?scp=34548432679&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548432679&partnerID=8YFLogxK

U2 - 10.1063/1.2766948

DO - 10.1063/1.2766948

M3 - Article

VL - 127

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 8

M1 - 084302

ER -