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. 2018 Jul 26;9(37):7338–7353. doi: 10.1039/c8sc02470g

Table 4. Third, second, and first ground state ionization energies (IE) of metals X and the corresponding charge recombination energy (ΔE) gained by electron attachment to X2+ to form X+, or X3+ to form X2+, from ref. 120.

Metal 3. IE [eV] 2. IE [eV] 1. IE [eV] ΔE [eV]
Ba 10.00383 5.21166 4.79216
Sr 11.03028 5.69487 5.33541
Ca 11.87172 6.11316 5.75856
Mg 15.03527 7.64624 7.38904
Mn 15.63999 7.43404 8.20595
Fe 16.19920 7.90247 8.29673
Zn 17.96439 9.39420 8.57019
Co 17.08440 7.88101 9.20339
Ni 18.16884 7.63988 10.52896
Cu 20.29239 7.72638 12.56601
Lu 20.95940 14.13000 6.82940
La 19.17730 11.18496 7.99234
In 28.04415 18.87041 9.17374
Al 28.44764 18.82855 9.61909
Ga 30.72576 20.51514 10.21062
Tb 21.82000 11.51300 10.30700
Ho 22.79000 11.78100 11.00900
Pm 22.44000 10.93800 11.50200
Tm 23.66000 12.06500 11.59500
Sm 23.55000 11.07800 12.47200
Yb 25.05300 12.17919 12.87382
Rh 31.06000 18.08000 12.98000
Eu 24.84000 11.24000 13.60000