TY - JOUR
T1 - Further evidence for resonant photoelectron-solvent scattering in nitrous oxide cluster anions
AU - Grumbling, Emily R.
AU - Pichugin, Kostyantyn
AU - Velarde, Luis
AU - Sanov, Andrei
PY - 2010
Y1 - 2010
N2 - The effects of anion solvation by N2O on photoelectron angular distributions are revisited in light of new photoelectron imaging results for the NO-(N2O)n, n = 0-4 cluster anions at 266 nm. The new observations are examined in the context of the previous studies of O- and NO- anions solvated in the gas phase by nitrous oxide [Pichugin; et al. J. Chem. Phys. et al. 2008, 129, 044311.; Velarde; et al. J. Chem. Phys. et al. 2007, 127, 084302.]. The photoelectron angular distributions collected in the three separate studies are summarized and analyzed using bare O- and NO- as zero-solvation references. Solvent-induced deviations of the angular distributions from the zero-solvation reference are scaled by solvation number (n) to yield solvent-induced anisotropy differentials. These differentials, calculated identically for the O-(N2O)n and NO-(N 2O)n cluster series, show remarkably similar energy dependences, peaking in the vicinity of a known electron-N2O scattering resonance. The results support the conclusion that the solvation effect on the photoelectron angular distributions in these cases is primarily due to resonant interaction of photoelectrons with the N2O solvent, rather than a solvent-induced perturbation of the parent-anion electronic wave function.
AB - The effects of anion solvation by N2O on photoelectron angular distributions are revisited in light of new photoelectron imaging results for the NO-(N2O)n, n = 0-4 cluster anions at 266 nm. The new observations are examined in the context of the previous studies of O- and NO- anions solvated in the gas phase by nitrous oxide [Pichugin; et al. J. Chem. Phys. et al. 2008, 129, 044311.; Velarde; et al. J. Chem. Phys. et al. 2007, 127, 084302.]. The photoelectron angular distributions collected in the three separate studies are summarized and analyzed using bare O- and NO- as zero-solvation references. Solvent-induced deviations of the angular distributions from the zero-solvation reference are scaled by solvation number (n) to yield solvent-induced anisotropy differentials. These differentials, calculated identically for the O-(N2O)n and NO-(N 2O)n cluster series, show remarkably similar energy dependences, peaking in the vicinity of a known electron-N2O scattering resonance. The results support the conclusion that the solvation effect on the photoelectron angular distributions in these cases is primarily due to resonant interaction of photoelectrons with the N2O solvent, rather than a solvent-induced perturbation of the parent-anion electronic wave function.
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U2 - 10.1021/jp906744v
DO - 10.1021/jp906744v
M3 - Article
C2 - 19817360
AN - SCOPUS:77249138849
SN - 1089-5639
VL - 114
SP - 1367
EP - 1373
JO - Journal of Physical Chemistry A
JF - Journal of Physical Chemistry A
IS - 3
ER -