1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Low energy (e,2e) coincidence studies of NH3: Results from experiment and theory
Rent:
Rent this article for
USD
10.1063/1.4802960
/content/aip/journal/jcp/138/17/10.1063/1.4802960
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/17/10.1063/1.4802960
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Molecular orbital diagram of the valence orbitals of NH. (b) Corresponding spatial orbital representations generated with for the four valence orbitals. The diagram shows the 3 highest occupied molecular orbital is anti-bonding with -like character. The 1 state is doubly degenerate, consisting of two molecular orbitals with -like character. By contrast, the 2 HOMO-2 state has -like character.

Image of FIG. 2.
FIG. 2.

Schematic diagram of the scattering geometry. A coplanar geometry is defined when the momenta of the incident and scattered electrons lie in the detection plane (ψ = 0°). The analyzer angles ξ and ξ are measured with respect to the projection of the incident electron momentum in this plane. A perpendicular geometry is defined when the incident electron momentum is orthogonal to the detection plane (ψ = 90°).

Image of FIG. 3.
FIG. 3.

TDCS from the 3 HOMO state of ammonia for coplanar symmetric kinematics. The energies of the outgoing electrons are shown in the respective plots. The experimental data (dots) and results from the molecular three-body distorted wave approximation (lines) are shown. The experimental and theoretical data have been independently normalised to unity at the peak for each energy.

Image of FIG. 4.
FIG. 4.

As for Figure 3 , for the 1 HOMO-1 state of NH.

Image of FIG. 5.
FIG. 5.

TDCS for orbitals with -like character from the iso-electronic series CH, NH, and Ne. For each target results for two energies are given: the top row gives data for outgoing electron energies of 20 eV, while the bottom row shows data with outgoing energies of 5 eV. At left is the TDCS for the 1 HOMO state of CH, the middle columns show results from the 3 and 1 states of NH, and the right column gives data from the 2 state of Ne. The experimental data are compared to distorted wave theoretical predictions; M3DW for the molecular targets and 3DW for the atomic target.

Image of FIG. 6.
FIG. 6.

As for Figure 2 , for the 2 state of NH.

Image of FIG. 7.
FIG. 7.

TDCS for orbitals of -like character for the three iso-electronic targets using different outgoing electron energies. The left plots are from the 2 (HOMO-1) of CH, the 2 (HOMO-2) for NH is shown in the central plots, and the 2 orbital of neon is shown in the right-hand plots. The energies in each case are shown in the respective plots.

Image of FIG. 8.
FIG. 8.

TDCS from the 3 state (HOMO) of ammonia in perpendicular kinematics. The energies of the outgoing electrons are shown in the respective plots. The experimental data (dots) and prediction from a distorted wave Born approximation (dashed lines) and molecular three-body distorted wave approximation (solid lines) are shown. The data and theoretical curves have been independently normalised to unity at their peak for each energy.

Image of FIG. 9.
FIG. 9.

As for Figure 8 , for the 1 state (HOMO-1) of NH.

Image of FIG. 10.
FIG. 10.

TDCS in the perpendicular plane for orbitals with -like character for the iso-electronic series. The left hand panels show data for the HOMO orbital of CH, the middle two columns show data for the HOMO and HOMO-1 orbitals of NH, respectively, and the right hand column shows the data from Ne. For each target three energy regimes are shown, labeled on the individual plots.

Loading

Article metrics loading...

/content/aip/journal/jcp/138/17/10.1063/1.4802960
2013-05-03
2014-04-21
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Low energy (e,2e) coincidence studies of NH3: Results from experiment and theory
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/17/10.1063/1.4802960
10.1063/1.4802960
SEARCH_EXPAND_ITEM