期刊
JOURNAL OF CHEMICAL PHYSICS
卷 150, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5089239
关键词
-
资金
- Air Force Office of Scientific Research [FA9550-18-0414]
The ionization energy (IE) of NdO and the low-energy electronic states of NdO+ have been examined by means of two-color photoionization spectroscopy. The value obtained for the IE, 5.5083(2) eV, is 0.54 eV higher than previous estimates. This leads to the conclusion that the autoionization reaction Nd + O -> NdO+ + e(-) is exothermic by 1.76(10) eV. Thirty vibronic levels of NdO+ arising from eight electronic states were observed with partial rotational resolution. The energy level pattern and supporting electronic structure calculations indicated that all of the observed states correlated with the Nd3+(4f(3), I-4)O2- configuration. The structure was consistent with a ligand field theory model where the electronic states of the Nd3+(4f(3), I-4) atomic ion define a repeated motif in the electronic state energy intervals of the molecular ion. Comparisons with UO+ show close similarity in the electronic structures of these isoelectronic species. Published under license by AIP Publishing.
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