188
6 Charge and Energy Transfer Processes
Na(3s) + Xe
Na(3p) + Xe
R(Na-Xe), ˚
A
energy, eV
4.5
4
3.5
3
2.5
2
4
3.5
3
2.5
2
1.5
1
0.5
0
exciplex emission
2
3/2
2
1/2
2 +
Na(3s) + Cd
Na(3p) + Cd
R(Na-Cd), ˚
A
energy, eV
4.5
4
3.5
3
2.5
2
2.5
2
1.5
1
0.5
0
2
2 +
Na(3s) + CO
Na(3p) + CO
R(Na-C), ˚
A
energy, eV
4.5
4
3.5
3
2.5
2
2.5
2
1.5
1
0.5
0
Fig. 6.3 Potential energy curves for the interaction of Na( 2 S, 3s) and Na( 2 P, 3 p) with different
collision partners. Upper panel: Na+Xe; middle panel: Na+Cd; lower panel: Na+CO, collinear
approach