Atomic Structure Calculations for Neutral Oxygen

Table 2

Energy levels for configuration 2s² 2p⁴. E(NIST) are from NIST database [22]. E(CW), E(SS), and E(AS) are energy levels calculated using, respectively, the Cowan, SUPERSTRUCTURE, and AUTOSTRUCTURE atomic codes. E(TFF) are energy levels values from Tachiev and Froese Fisher [12]. All energies are in cm⁻¹.

Configuration	Term	J	E(NIST)	E(CW)	E(SS)	E(AS)	E(TFF)
2s^22p^4	^3P	2	0	0	0	0	0
2s^22p^4	^3P	1	158	141	171	204	156
2s^22p^4	^3P	0	227	210	255	303	223
2s^22p^4	^1D	2	15868	14941	18881	17364	16122
2s^22p^4	^1S	0	33793	37013	45746	42140	33844