Table 1: Some relevant energy levels and ionization potentials (in eV) from our MCDF calculations and from NIST (1999) for B-like ions. The energy of each term is obtained as the mean of the energy levels pondered by their statistical weight.
N²⁺ O³⁺ F⁴⁺

Level MCDF NIST MCDF NIST MCDF NIST

2s²2p ²P 0 0 0 0 0 0

2s2p² ⁴P 6.70 7.10 8.52 8.88 10.34 10.69

$E_{\rm IP}$ (2s² ¹S) 46.92 47.45 76.14 77.41 113.96 114.24

$E_{\rm IP}$ (2s2p ³P) 53.19 55.80 86.60 87.61 123.22 126.25

$E_{\rm IP}$ (1s²2s2p ¹P) 62.41 63.65 96.93 97.10 135.82 137.41

$\Delta E _{\rm IP} (^1{\rm P} -^3{\rm P})$ 9.22 7.85 10.33 9.49 12.60 11.25

**Table 1:** Some relevant energy levels and ionization potentials (in eV) from our MCDF calculations and from NIST (1999) for B-like ions. The energy of each term is obtained as the mean of the energy levels pondered by their statistical weight.
	N²⁺	O³⁺	F⁴⁺
Level	MCDF	NIST	MCDF	NIST	MCDF	NIST
2s²2p ²P	0	0	0	0	0	0
2s2p² ⁴P	6.70	7.10	8.52	8.88	10.34	10.69
$E_{\rm IP}$ (2s² ¹S)	46.92	47.45	76.14	77.41	113.96	114.24
$E_{\rm IP}$ (2s2p ³P)	53.19	55.80	86.60	87.61	123.22	126.25
$E_{\rm IP}$ (1s²2s2p ¹P)	62.41	63.65	96.93	97.10	135.82	137.41
$\Delta E _{\rm IP} (^1{\rm P} -^3{\rm P})$	9.22	7.85	10.33	9.49	12.60	11.25

Source LaTeX | All tables | In the text

	1 Introduction
	2 Experimental
	3 MCDF calculations
	4 Results
	5 Concluding remarks
	References