|
H -
|
He
|
Li+
|
Be++
|
B(3+)
|
C(4+)
|
|
| Z |
1
|
2
|
3
|
4
|
5
|
6
|
| Ion.pot.[au] |
0,0278
|
0,9043
|
2,78
|
5,66
|
9,54
|
14,42
|
| 2.Ion.pot |
0,5
|
2
|
4,5
|
8
|
12,5
|
18
|
| EXP.BindEner |
-0,5278
|
-2,9043
|
-7,28
|
-13,66
|
-22,04
|
-32,42
|
| 2 E1s |
-1,0
|
-4,0
|
-9,00
|
-16,00
|
-25,00
|
-36,00
|
| 2 E1s + 5/8 Z |
-0,375
|
-2,750
|
-7,13
|
-13,50
|
-21,88
|
-32,25
|
| Variational |
-0,473
|
-2,848
|
-7,22
|
-13,60
|
-21,97
|
-32,35
|
| EXP.BindEner |
-0,528
|
-2,904
|
-7,28
|
-13,66
|
-22,04
|
-32,42
|
| Zeff |
0,688
|
1,688
|
2,688
|
3,688
|
4,688
|
5,688
|
Ion.pot. Ionization potential: The energy to remove the first electron
2.Ion.pot Second Ionization potential: The energy to remove the second electron
EXP.BindEner The experimental binding energy is sum of the two ionization potentials
Zeff The effective Z obtained from the variational procedure
Two-electron systems in units of eV
|
H-
|
He
|
Li+
|
Be++
|
B(3+)
|
C(4+)
|
|
| Z |
1
|
2
|
3
|
4
|
5
|
6
|
| Ion.pot.[au] |
0,757
|
24,60
|
75,62
|
153,95
|
259,49
|
392,22
|
| 2.Ion.pot |
13,600
|
54,40
|
122,40
|
217,60
|
340,00
|
489,60
|
| EXP.BindEner |
-14,357
|
-79,00
|
-198,02
|
-371,55
|
-599,49
|
-881,82
|
| 2 E1s |
-27,200
|
-108,80
|
-244,80
|
-435,20
|
-680,00
|
-979,20
|
| 2 E1s + 5/8 Z |
-10,200
|
-74,80
|
-193,80
|
-367,20
|
-595,00
|
-877,20
|
| Variational |
-12,856
|
-77,46
|
-196,46
|
-369,86
|
-597,66
|
-879,86
|
| EXP.BindEner |
-14,357
|
-79,00
|
-198,02
|
-371,55
|
-599,49
|
-881,82
|
Ion.pot. Ionization potential: The energy to remove the first electron
2.Ion.pot Second Ionization potential: The energy to remove the second electron
EXP.BindEner The experimental binding energy is sum of the two ionization potentials