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Electron affinity (data page)

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This page deals with the electron affinity as a property of isolated atoms or molecules (i.e. in the gas phase). Solid state electron affinities are not listed here.

Elements

Electron affinity can be defined in two equivalent ways. First, as the energy that is released by adding an electron to an isolated gaseous atom. The second (reverse) definition is that electron affinity is the energy required to remove an electron from a singly charged gaseous negative ion. Either convention can be used.[1] Whereas ionization energies are always concerned with the formation of positive ions, electron affinities are the negative ion equivalent.

Negative electron affinities can be used in those cases where electron capture requires energy, i.e. when capture can occur only if the impinging electron has a kinetic energy large enough to excite a resonance of the atom-plus-electron system. Conversely electron removal from the anion formed in this way releases energy, which is carried out by the freed electron as kinetic energy. Negative ions formed in these cases are always unstable. They may have lifetimes of the order of microseconds to milliseconds, and invariably autodetach after some time.

Z Element Name Electron affinity (eV) Electron affinity (kJ/mol) References
1 1H Hydrogen 0.754 195(19) 72.769(2) [2]
1 2H Deuterium 0.754 59(8) 72.807(8) [2]
2 He Helium -0.5(2) -48(20) estimated (est.)[3]
3 Li Lithium 0.618 049(22) 59.632 6(21) [4]
4 Be Beryllium -0.5(2) -48(20) est.[3]
5 B Boron 0.279 723(25) 26.989(3) [5]
6 12C Carbon 1.262 122 6(11) 121.776 3(1) [6]
6 13C Carbon 1.262 113 6(12) 121.775 5(2) [6]
7 N Nitrogen -0.07 -6.8 [3]
8 16O Oxygen 1.461 113 6(9) 140.976 0(2) [7]
8 17O Oxygen 1.461 108 (4) 140.975 5(3) [8]
8 18O Oxygen 1.461 105(3) 140.975 2(3) [8]
9 F Fluorine 3.401 189 8(24) 328.164 9(3) [9][10]
10 Ne Neon -1.2(2) -116(19) est.[3]
11 Na Sodium 0.547 926(25) 52.867(3) [11]
12 Mg Magnesium -0.4(2) -40(19) est.[3]
13 Al Aluminium 0.432 83(5) 41.762(5) [12]
14 Si Silicon 1.389 521 2(8) 134.068 4(1) [7]
15 P Phosphorus 0.746 609(11) 72.037(1) [13]
16 32S Sulfur 2.077 104 2(6) 200.410 1(1) [7]
16 34S Sulfur 2.077 104 5(12) 200.410 1(2) [14]
17 Cl Chlorine 3.612 725(28) 348.575(3) [15]
18 Ar Argon -1.0(2) -96(20) est.[3]
19 K Potassium 0.501 459(13) 48.383(2) [16]
20 Ca Calcium 0.024 55(10) 2.37(1) [17]
21 Sc Scandium 0.188(20) 18(2) [18]
22 Ti Titanium 0.075 54(5) 7.289(5) [19]
23 V Vanadium 0.527 66(20) 50.911(20) [20]
24 Cr Chromium 0.675 84(12) 65.21(2) [21]
25 Mn Manganese -0.5(2) -50(19) est.[3]
26 Fe Iron 0.153 236(35) 14.785(4) [22]
27 Co Cobalt 0.662 26(5) 63.898(5) [23]
28 Ni Nickel 1.157 16(12) 111.65(2) [24]
29 Cu Copper 1.235 78(4) 119.235(4) [21]
30 Zn Zinc -0.6(2) -58(20) est.[3]
31 Ga Gallium 0.301 20(11) 29.061(12) [25]
32 Ge Germanium 1.232 676 4(13) 118.935 2(2) [26]
33 As Arsenic 0.804 8(2) 77.65(2) [27]
34 Se Selenium 2.020 604 7(12) 194.958 7(2) [28]
35 Br Bromine 3.363 588(3) 324.536 9(3) [9]
36 Kr Krypton -1.0(2) -96(20) est.[3]
37 Rb Rubidium 0.485 916(21) 46.884(3) [29]
38 Sr Strontium 0.052 06(6) 5.023(6) [30]
39 Y Yttrium 0.307(12) 29.6(12) [18]
40 Zr Zirconium 0.433 28(9) 41.806(9) [31]
41 Nb Niobium 0.917 40(7) 88.516(7) [32]
42 Mo Molybdenum 0.747 3(3) 72.10(3) [21]
43 Tc Technetium 0.55(20) 53(20) est.[33]
44 Ru Ruthenium 1.046 38(25) 100.96(3) [34]
45 Rh Rhodium 1.142 89(20) 110.27(2) [24]
46 Pd Palladium 0.562 14(12) 54.24(2) [24]
47 Ag Silver 1.304 47(3) 125.862(3) [21]
48 Cd Cadmium -0.7(2) -68(20) est.[3]
49 In Indium 0.383 92(6) 37.043(6) [35]
50 Sn Tin 1.112 070(2) 107.298 4(3) [36]
51 Sb Antimony 1.047 401(19) 101.059(2) [37]
52 Te Tellurium 1.970 875(7) 190.161(1) [38]
53 127I Iodine 3.059 046 5(37) 295.153 1(4) [39]
53 128I Iodine 3.059 052(38) 295.154(4) [40]
54 Xe Xenon -0.8(2) -77(20) est.[3]
55 Cs Caesium 0.471 630(25) 45.505(3) [11][41]
56 Ba Barium 0.144 62(6) 13.954(6) [42]
57 La Lanthanum 0.557 546(20) 53.795(2) [43]
58 Ce Cerium 0.57(2) 55(2) [44]
59 Pr Praseodymium 0.109 23(46) 10.539(45) [45]
60 Nd Neodymium 0.097 49(33) 9.406(32) [45]
61 Pm Promethium 0.129 12.45 [46]
62 Sm Samarium 0.162 15.63 [46]
63 Eu Europium 0.116(13) 11.2(13) [47]
64 Gd Gadolinium 0.137 13.22 [46]
65 Tb Terbium 0.131 31(80) 12.670(77) [45]
66 Dy Dysprosium 0.352 33.96 min. value[33]
67 Ho Holmium 0.338 32.61 [46]
68 Er Erbium 0.312 30.10 [46]
69 Tm Thulium 1.029(22) 99(3) [48]
70 Yb Ytterbium -0.02 -1.93 est.[33]
71 Lu Lutetium 0.238 8(7) 23.04(7) [49]
72 Hf Hafnium 0.178 0(7) 17.18(7) [50]
73 Ta Tantalum 0.323(12) 31(2) [51]
74 W Tungsten 0.816 26(8) 78.76(1) [52]
75 Re Rhenium 0.060 396(63) 5.827 3(61) [53]
76 Os Osmium 1.077 80(13) 103.99(2) [54]
77 Ir Iridium 1.564 057(12) 150.908 6(12) [55]
78 Pt Platinum 2.125 10(5) 205.041(5) [56]
79 Au Gold 2.308 610(25) 222.747(3) [57]
80 Hg Mercury -0.5(2) -48(20) est.[3]
81 Tl Thallium 0.320 053(19) 30.880 4(19) [58]
82 Pb Lead 0.356 721(2) 34.418 3(3) [59]
83 Bi Bismuth 0.942 362(13) 90.924(2) [60]
84 Po Polonium 1.40(7) 136(7) calculated (calc.)[61]
85 At Astatine 2.415 78(7) 233.087(8) [62]
86 Rn Radon -0.7(2) -68(20) est.[3]
87 Fr Francium 0.486 46.89 est.[63][33]
88 Ra Radium 0.10 9.648 5 est.[64][33]
89 Ac Actinium 0.35 33.77 est.[33]
90 Th Thorium 1.17 112.72 est.[65]
91 Pa Protactinium 0.55 53.03 est.[65]
92 U Uranium 0.53 50.94 est.[65]
93 Np Neptunium 0.48 45.85 est.[65]
94 Pu Plutonium -0.50 -48.33 est.[65]
95 Am Americium 0.10 9.93 est.[65]
96 Cm Curium 0.28 27.17 est.[65]
97 Bk Berkelium -1.72 -165.24 est.[65]
98 Cf Californium -1.01 -97.31 est.[65]
99 Es Einsteinium -0.30 -28.60 est.[65]
100 Fm Fermium 0.35 33.96 est.[65]
101 Md Mendelevium 0.98 93.91 est.[65]
102 No Nobelium -2.33 -223.22 est.[65]
103 Lr Lawrencium -0.31 -30.04 est.[65]
111 Rg Roentgenium 1.565 151.0 calc.[66]
113 Nh Nihonium 0.69 66.6 calc.[67]
115 Mc Moscovium 0.366 35.3 calc.[67]
116 Lv Livermorium 0.776 74.9 calc.[67]
117 Ts Tennessine 1.719 165.9 calc.[67]
118 Og Oganesson 0.056(10) 5.403 18 calc.[68]
119 Uue Ununennium 0.662 63.87 calc.[63]
120 Ubn Unbinilium 0.021 2.03 calc.[69]
121 Ubu Unbiunium 0.57 55 calc.[33]

Molecules

The electron affinities Eea of some molecules are given in the table below, from the lightest to the heaviest. Many more have been listed by Rienstra-Kiracofe et al. (2002). The electron affinities of the radicals OH and SH are the most precisely known of all molecular electron affinities.

Molecule Name Eea (eV) Eea (kJ/mol) References
Diatomics
16OH Hydroxyl 1.827 6488(11) 176.3413(2) Goldfarb et al. (2005)
16OD 1.825 53(4) 176.137(5) Schulz et al. (1982)
C2 Dicarbon 3.269(6) 315.4(6) Ervin & Lineberger (1991)
BO Boron oxide 2.508(8) 242.0(8) Wenthold et al. (1997)
NO Nitric oxide 0.026(5) 2.5(5) Travers, Cowles & Ellison (1989)
O2 Dioxygen 0.450(2) 43.42(20) Schiedt & Weinkauf (1995)
32SH Sulfhydryl 2.314 7283(17) 223.3373(2) Chaibi et al. (2006)
F2 Difluorine 3.08(10) 297(10) Janousek & Brauman (1979)
Cl2 Dichlorine 2.35(8) 227(8) Janousek & Brauman (1979)
Br2 Dibromine 2.53(8) 244(8) Janousek & Brauman (1979)
I2 Diiodine 2.524(5) 243.5(5) Zanni et al. (1997)
IBr Iodine bromide 2.512(3) 242.4(4) Sheps, Miller & Lineberger (2009)
LiCl Lithium chloride 0.593(10) 57.2(10) Miller et al. (1986)
FeO Iron(II) oxide 1.4950(5) 144.25(6) Kim, Weichman & Neumark (2015)
Triatomics
NO2 Nitrogen dioxide 2.273(5) 219.3(5) Ervin, Ho & Lineberger (1988)
O3 Ozone 2.1028(25) 202.89(25) Novick et al. (1979)
SO2 Sulfur dioxide 1.107(8) 106.8(8) Nimlos & Ellison (1986)
Larger polyatomics
CH2CHO Vinyloxy 1.8248(+2-6) 176.07(+3-7) Rienstra-Kiracofe et al. (2002) after Mead et al. (1984)
C6H6 Benzene -0.70(14) −68(14) Ruoff et al. (1995)
C6H4O2 p-Benzoquinone 1.860(5) 179.5(6) Schiedt & Weinkauf (1999)
BF3 Boron trifluoride 2.65(10) 256(10) Page & Goode (1969)
HNO3 Nitric acid 0.57(15) 55(14) Janousek & Brauman (1979)
CH3NO2 Nitromethane 0.172(6) 16.6(6) Adams et al. (2009)
POCl3 Phosphoryl chloride 1.41(20) 136(20) Mathur et al. (1976)
SF6 Sulfur hexafluoride 1.03(5) 99.4(49) Troe, Miller & Viggiano (2012)
C2(CN)4 Tetracyanoethylene 3.17(20) 306(20) Chowdhury & Kebarle (1986)
WF6 Tungsten hexafluoride 3.5(1) 338(10) George & Beauchamp (1979)
UF6 Uranium hexafluoride 5.06(20) 488(20) NIST chemistry webbook after Borshchevskii et al. (1988)
C60 Buckminsterfullerene 2.6835(6) 258.92(6) Huang et al. (2014)

Second and third electron affinity

Z Element Name Electron affinity (eV) Electron affinity (kJ/mol) References
7 N Nitrogen -6.98 -673 [70]
7 N2- Nitrogen -11.09 -1070 [70]
8 O Oxygen -7.71 -744 [70]
15 P Phosphorus -4.85 -468 [70]
15 P2- Phosphorus -9.18 -886 [70]

Bibliography

  • Janousek, Bruce K.; Brauman, John I. (1979), "Electron affinities", in Bowers, M. T. (ed.), Gas Phase Ion Chemistry, vol. 2, New York: Academic Press, p. 53.
  • Rienstra-Kiracofe, J.C.; Tschumper, G.S.; Schaefer, H.F.; Nandi, S.; Ellison, G.B. (2002), "Atomic and molecular electron affinities: Photoelectron experiments and theoretical computations", Chem. Rev., vol. 102, no. 1, pp. 231–282, doi:10.1021/cr990044u, PMID 11782134.
  • Updated values can be found in the NIST chemistry webbook for around three dozen elements and close to 400 compounds.

Specific molecules

References

  1. ^ IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006–) "Electron affinity". doi:10.1351/goldbook.E01977
  2. ^ a b Lykke, K.R.; Murray, K.K.; Lineberger, W.C. (1991). "Threshold Photodetachment of H". Physical Review A. 43 (11): 6104–7. doi:10.1103/PhysRevA.43.6104. PMID 9904944.
  3. ^ a b c d e f g h i j k l m Bratsch, S.G.; Lagowski, J.J. (1986). "Predicted stabilities of monatomic anions in water and liquid ammonia at 298.15 K.". Polyhedron. 5 (11): 1763–1770. doi:10.1016/S0277-5387(00)84854-8.
  4. ^ Haeffler, G.; Hanstorp, D.; Kiyan, I.; Klinkmüller, A.E.; Ljungblad, U.; Pegg, D.J. (1996a). "Electron affinity of Li: A state-selective measurement". Phys. Rev. A. 53 (6): 4127–31. arXiv:physics/9703013. Bibcode:1996PhRvA..53.4127H. doi:10.1103/PhysRevA.53.4127. PMID 9913377.
  5. ^ Scheer, M.; Bilodeau, R.C.; Haugen, H.K. (1998). "Negative ion of boron: An experimental study of the 3P ground state". Phys. Rev. Lett. 80 (12): 2562–65. Bibcode:1998PhRvL..80.2562S. doi:10.1103/PhysRevLett.80.2562.
  6. ^ a b Bresteau, D.; Drag, C.; Blondel, C. (2016). "Isotope shift of the electron affinity of carbon measured by photodetachment microscopy". Phys. Rev. A. 93 (1): 013414. Bibcode:2016PhRvA..93a3414B. doi:10.1103/PhysRevA.93.013414.
  7. ^ a b c Chaibi, W.; Peláez, R.J.; Blondel, C.; Drag, C.; Delsart, C. (2010). "Effect of a magnetic field in photodetachment microscopy". Eur. Phys. J. D. 58 (1): 29. Bibcode:2010EPJD...58...29C. doi:10.1140/epjd/e2010-00086-7.
  8. ^ a b Blondel, C.; Delsart, C.; Valli, C.; Yiou, S.; Godefroid, M.R.; Van Eck, S. (2001). "Electron affinities of 16 O, 17 O, 18 O, the fine structure of 16O, and the hyperfine structure of 17O". Phys. Rev. A. 64 (5): 052504. doi:10.1103/PhysRevA.64.052504.
  9. ^ a b Blondel, C.; Cacciani, P.; Delsart, C.; Trainham, R. (1989). "High Resolution Determination of the Electron Affinity of Fluorine and Bromine using Crossed Ion and Laser Beams". Phys. Rev. A. 40 (7): 3698–3701. Bibcode:1989PhRvA..40.3698B. doi:10.1103/PhysRevA.40.3698. PMID 9902584.
  10. ^ Blondel, C.; Delsart, C.; Goldfarb, F. (2001). "Electron spectrometry at the μeV level and the electron affinities of Si and F". Journal of Physics B. 34: L281–88. doi:10.1088/0953-4075/34/9/101.
  11. ^ a b Hotop, H.; Lineberger, W.C. (1985). "Binding energies in atomic negative ions. II". J. Phys. Chem. Ref. Data. 14 (3): 731. Bibcode:1985JPCRD..14..731H. doi:10.1063/1.555735.
  12. ^ Scheer, M.; Bilodeau, R.C.; Thøgersen, J.; Haugen, H.K. (1998b). "Threshold Photodetachment of Al: Electron Affinity and Fine Structure". Phys. Rev. A. 57 (3): R1493–96. Bibcode:1998PhRvA..57.1493S. doi:10.1103/PhysRevA.57.R1493.
  13. ^ Peláez, R.J.; Blondel, C.; Vandevraye, M.; Drag, C.; Delsart, C. (2011). "Photodetachment microscopy to an excited spectral term and the electron affinity of phosphorus". J. Phys. B: At. Mol. Opt. Phys. 44 (19): 195009. Bibcode:2011JPhB...44s5009P. doi:10.1088/0953-4075/44/19/195009. hdl:10261/62382.
  14. ^ Carette, T.; Drag, C.; Scharf, O.; Blondel, C.; Delsart, C.; Fischer, C. (2000). "F. & Godefroid M. (2010). Isotope shift in the sulfur electron affinity: Observation and theory". Phys. Rev. A. 81: 042522. arXiv:1002.1297. doi:10.1103/PhysRevA.81.042522.
  15. ^ Berzinsh, U.; Gustafsson, M.; Hanstorp, D.; Klinkmüller, A.; Ljungblad, U.; Martensson-Pendrill, A.M. (1995). "Isotope shift in the electron affinity of chlorine". Phys. Rev. A. 51 (1): 231–238. arXiv:physics/9804028. Bibcode:1995PhRvA..51..231B. doi:10.1103/PhysRevA.51.231. PMID 9911578.
  16. ^ Andersson, K.T.; Sandstrom, J.; Kiyan, I.Y.; Hanstorp, D.; Pegg, D.J. (2000). "Measurement of the electron affinity of potassium". Phys. Rev. A. 62 (2): 022503. Bibcode:2000PhRvA..62b2503A. doi:10.1103/PhysRevA.62.022503.
  17. ^ Petrunin, V.V.; Andersen, H.H.; Balling, P.; Andersen, T. (1996). "Structural Properties of the Negative Calcium Ion: Binding Energies and Fine-structure Splitting". Phys. Rev. Lett. 76 (5): 744–47. Bibcode:1996PhRvL..76..744P. doi:10.1103/PhysRevLett.76.744. PMID 10061539.
  18. ^ a b Feigerle, C.S.; Herman, Z.; Lineberger, W.C. (1981). "Laser Photoelectron Spectroscopy of Sc and Y: A Determination of the Order of Electron Filling in Transition Metal Anions". J. Electron Spectrosc. 23: 441–50. doi:10.1016/0368-2048(81)85050-5.
  19. ^ Tang, R.; Fu, X.; Ning, C. (2018). "Accurate electron affinity of Ti and fine structures of its anions". J. Chem. Phys. 149 (13): 134304. Bibcode:2018JChPh.149m4304T. doi:10.1063/1.5049629. PMID 30292212.
  20. ^ Fu, X.; Luo, Z.; Chen, X.; Li, J.; Ning, C. (2016). "Accurate electron affinity of V and fine-structure splittings of V via slow-electron velocity-map imaging". J. Chem. Phys. 145 (16): 164307. Bibcode:2016JChPh.145p4307F. doi:10.1063/1.4965928. PMID 27802620.
  21. ^ a b c d Bilodeau, R.C.; Scheer, M.; Haugen, H.K. (1998). "Infrared Laser Photodetachment of Transition Metal Negative Ions: Studies on Cr, Mo, Cu, and Ag". Journal of Physics B. 31: 3885–91. doi:10.1088/0953-4075/31/17/013.
  22. ^ Chen, X.; Luo, Z.; Li, J.; Ning, C. (2016). "Accurate Electron Affinity of Iron and Fine Structures of Negative Iron ions". Sci. Rep. 6: 24996. Bibcode:2016NatSR...624996C. doi:10.1038/srep24996. PMC 4853736. PMID 27138292.
  23. ^ Chen, X.; Ning, C. (2016). "Accurate electron affinity of Co and fine-structure splittings of Co via slow-electron velocity-map imaging". Phys. Rev. A. 93 (5): 052508. Bibcode:2016PhRvA..93e2508C. doi:10.1103/PhysRevA.93.052508.
  24. ^ a b c Scheer, M.; Brodie, C.A.; Bilodeau, R.C.; Haugen, H.K. (1998c). "Laser spectroscopic measurements of binding energies and fine-structure splittings of Co, Ni, Rh, and Pd". Phys. Rev. A. 58 (3): 2051–62. doi:10.1103/PhysRevA.58.2051.
  25. ^ Gibson, N.D.; Walter, C.W; Crocker, C.; Wang, J.; Nakayama, W.; Yukich, J.; Eliav, E.; Kaldor, U. (2019). "Electron affinity of gallium and fine structure of Ga: Experiment and theory". Phys. Rev. A. 100 (5): 052512. doi:10.1103/PhysRevA.100.052512.
  26. ^ Bresteau, D.; Babilotte, Ph.; Drag, C.; Blondel, C. (2015). "Intra-cavity photodetachment microscopy and the electron affinity of germanium". J. Phys. B: At. Mol. Opt. Phys. 48 (12): 125001. Bibcode:2015JPhB...48l5001B. doi:10.1088/0953-4075/48/12/125001.
  27. ^ Walter, C. W.; Gibson, N. D.; Field, R. L.; Snedden, A. P.; Shapiro, J. Z.; Janczak, C. M.; Hanstorp, D. (2009). "Electron affinity of arsenic and the fine structure of As measured using infrared photodetachment threshold spectroscopy". Phys. Rev. A. 80 (1): 014501. Bibcode:2009PhRvA..80a4501W. doi:10.1103/physreva.80.014501.
  28. ^ Vandevraye, M.; Drag, C.; Blondel, C. (2012). "Electron affinity of selenium measured by photodetachment microscopy". Phys. Rev. A. 85 (1): 015401. Bibcode:2012PhRvA..85a5401V. doi:10.1103/PhysRevA.85.015401.
  29. ^ Frey, P.; Breyer, F.; Hotop, H. (1978). "High Resolution Photodetachment from the Rubidium Negative Ion around the Rb(5p1/2) Threshold. Journal of Physics BJ. Phys. B: At. Mol. Phys". Chinese Journal of Chemical Physics. 11: L589–94. doi:10.1088/0022-3700/11/19/005.
  30. ^ Andersen, H.H.; Petrunin, V.V.; Kristensen, P.; Andersen, T. (1997). "Structural properties of the negative strontium ion: Binding energy and fine-structure splitting". Phys. Rev. A. 55 (4): 3247–49. Bibcode:1997PhRvA..55.3247A. doi:10.1103/PhysRevA.55.3247.
  31. ^ Fu, X.; Li, J.; Luo, Z.; Chen, X.; Ning, C. (2017). "Precision measurement of electron affinity of Zr and fine structures of its negative ions. Journal of Chemical Physics J. Chem. Phys". The Journal of Chemical Physics. 147 (6): 064306. doi:10.1063/1.4986547. PMID 28810756.
  32. ^ Luo Z., Chen X., Li J. & Ning C. (2016). Precision measurement of the electron affinity of niobium. Phys. Rev. A 93, 020501(R) doi:10.1103/PhysRevA.93.020501
  33. ^ a b c d e f g CRC Handbook of Chemistry and Physics 92nd Edn. (2011–2012); W. M. Haynes. Boca Raton, FL: CRC Press. "Section 10, Atomic, Molecular, and Optical Physics; Electron Affinities".
  34. ^ Norquist, P.L.; Beck, D.R.; Bilodeau, R.C.; Scheer, M.; Srawley, R.A.; Haugen, H.K. (1999). "Theoretical and experimental binding energies for the d7s2 4F levels in Ru, including calculated hyperfine structure and M1 decay rates". Phys. Rev. A. 59 (3): 1896–1902. Bibcode:1999PhRvA..59.1896N. doi:10.1103/PhysRevA.59.1896.
  35. ^ Walter, C.W.; Gibson, N.D.; Carman, D.J.; Li, Y.-G.; Matyas, D.J. (2010). "Electron affinity of indium and the fine structure of In measured using infrared photodetachment threshold spectroscopy". Phys. Rev. A. 82 (3): 032507. Bibcode:2010PhRvA..82c2507W. doi:10.1103/PhysRevA.82.032507.
  36. ^ Vandevraye, M.; Drag, C.; Blondel, C. (2013). "Electron affinity of tin measured by photodetachment microscopy". Journal of Physics B: Atomic, Molecular and Optical Physics. 46 (12): 125002. Bibcode:2013JPhB...46l5002V. doi:10.1088/0953-4075/46/12/125002.
  37. ^ Scheer, M.; Haugen, H.K.; Beck, D.R. (1997). "Single- and Multiphoton Infrared Laser Spectroscopy of Sb: A Case Study". Phys. Rev. Lett. 79 (21): 4104–7. Bibcode:1997PhRvL..79.4104S. doi:10.1103/PhysRevLett.79.4104.
  38. ^ Haeffler, G.; Klinkmüller, A.E.; Rangell, J.; Berzinsh, U.; Hanstorp, D. (1996b). "The Electron Affinity of Tellurium. Zeitschrift für Physik D Z. Phys. D". Journal of Physical and Chemical Reference Data. 38: 211. arXiv:physics/9703012. doi:10.1007/s004600050085.
  39. ^ Peláez R.J., Blondel C., Delsart C. and Drag C. (2009) J. Phys. B 42 125001 doi:10.1088/0953-4075/42/12/125001
  40. ^ Rothe, S.; Sundberg, J.; Welander, J.; Chrysalidis, K.; Goodacre, T. (2017). "D., Fedosseev V., ... & Kron T. (2017). Laser photodetachment of radioactive 128I". J. Phys. G: Nucl. Part. Phys. 44: 104003. doi:10.1088/1361-6471/aa80aa.
  41. ^ Scheer, M.; Thøgersen, J.; Bilodeau, R.C.; Brodie, C.A.; Haugen, H.K. (1998d). "Experimental Evidence that the 6s6p 3PJ States of Cs are Shape Resonances". Phys. Rev. Lett. 80 (4): 684–87. Bibcode:1998PhRvL..80..684S. doi:10.1103/PhysRevLett.80.684.
  42. ^ Petrunin, V.V.; Volstad, J.D.; Balling, P.; Kristensen, K.; Andersen, T. (1995). "Resonant Ionization Spectroscopy of Ba: Metastable and Stable Ions". Phys. Rev. Lett. 75 (10): 1911–14. Bibcode:1995PhRvL..75.1911P. doi:10.1103/PhysRevLett.75.1911. PMID 10059160.
  43. ^ Blondel, C (2020). "Comment on "Measurement of the electron affinity of the lanthanum atom"" (PDF). Phys. Rev. A. 101 (1): 016501. Bibcode:2020PhRvA.101a6501B. doi:10.1103/PhysRevA.101.016501.
  44. ^ Felton, J.; Ray, M.; Jarrold, C.C. (2014). "Measurement of the electron affinity of atomic Ce". Phys. Rev. A. 89 (3): 033407. Bibcode:2014PhRvA..89c3407F. doi:10.1103/PhysRevA.89.033407.
  45. ^ a b c Fu, X.; Lu, Y.; Tang, R.; Ning, C. (2020). "Electron affinity measurements of lanthanide atoms: Pr, Nd, and Tb". Phys. Rev. A. 101 (2): 022502. doi:10.1103/PhysRevA.101.022502.
  46. ^ a b c d e Felfli, Z.; Msezane, A.; Sokolovski, D. (2009). "Resonances in low-energy electron elastic cross sections for lanthanide atoms". Phys. Rev. A. 79 (1): 012714. Bibcode:2009PhRvA..79a2714F. doi:10.1103/PhysRevA.79.012714.
  47. ^ Cheng, S.B.; Castleman, A. W. Jr (2015). "Direct experimental observation of weakly-bound character of the attached electron in europium anion". Sci. Rep. 5: 12414. Bibcode:2015NatSR...512414C. doi:10.1038/srep12414. PMC 4510523. PMID 26198741.
  48. ^ Davis, V.T.; Thompson, J.S. (2002b). "Measurement of the electron affinity of thulium". Phys. Rev. A. 65 (1): 010501. Bibcode:2002PhRvA..65a0501D. doi:10.1103/PhysRevA.65.010501.
  49. ^ Fu, X. X.; Tang, R. L.; Lu, Y. Z.; Ning, C. G. (2019). "Measurement of electron affinity of atomic lutetium via the cryo-SEVI Method". Chinese J. Chem. Phys. 32 (2): 187. Bibcode:2019ChJCP..32..187F. doi:10.1063/1674-0068/cjcp1812293.
  50. ^ Tang R., Chen X., Fu X., Wang H. and Ning C. (2018). Electron affinity of the hafnium atom. Phys. Rev. A 98 020501(R) doi:10.1103/PhysRevA.98.020501.
  51. ^ Feigerle, C.S.; Corderman, R.R.; Bobashev, S.V.; Lineberger, W.C. (1981). "Binding energies and structure of transition metal negative ions". J. Chem. Phys. 74 (3): 1580. Bibcode:1981JChPh..74.1580F. doi:10.1063/1.441289.
  52. ^ Lindahl, A.O.; et al. (2010). "The electron affinity of tungsten". Eur. Phys. J. D. 60 (2): 219. Bibcode:2010EPJD...60..219L. doi:10.1140/epjd/e2010-00199-y.
  53. ^ Chen, X.L.; Ning, C.G. (2017). "Observation of Rhenium Anion and Electron Affinity of Re". J. Phys. Chem. Lett. 8 (12): 2735–2738. doi:10.1021/acs.jpclett.7b01079. PMID 28581753.
  54. ^ Bilodeau, R.C.; Haugen, H.K. (2000). "Experimental studies of Os: Observation of a bound-bound electric dipole transition in an atomic negative ion". Phys. Rev. Lett. 85 (3): 534–37. Bibcode:2000PhRvL..85..534B. doi:10.1103/PhysRevLett.85.534. PMID 10991333.
  55. ^ Lu Y., Zhao J., Tang R., Fu X. & Ning C. (2020). Measurement of electron affinity of iridium atom and photoelectron angular distributions of iridium anion. J. Chem. Phys. 152, 034302 doi:10.1063/1.5134535
  56. ^ Bilodeau, R.C.; Scheer, M.; Haugen, H.K.; Brooks, R.L. (1999). "Near-threshold Laser Spectroscopy of Iridium and Platinum Negative Ions: Electron Affinities and the Threshold Law". Phys. Rev. A. 61: 012505. doi:10.1103/PhysRevA.61.012505.
  57. ^ Andersen, T.; Haugen, H.K.; Hotop, H. (1999). "Binding Energies in Atomic Negative Ions: III". J. Phys. Chem. Ref. Data. 28 (6): 1511. Bibcode:1999JPCRD..28.1511A. doi:10.1063/1.556047.
  58. ^ Walter, C.W.; Gibson, N.D.; Spielman, S.E. (2020). "Electron affinity of thallium measured with threshold spectroscopy". Phys. Rev. A. 101 (5): 052511. doi:10.1103/PhysRevA.101.052511.
  59. ^ Bresteau, D.; Drag, C.; Blondel, C. (2019). "Electron affinity of lead". J. Phys. B: At. Mol. Opt. Phys. 52 (6): 065001. Bibcode:2019JPhB...52f5001B. doi:10.1088/1361-6455/aaf685.
  60. ^ Bilodeau, R.C.; Haugen, H.K. (2001). "Electron affinity of Bi using infrared laser photodetachment threshold spectroscopy". Phys. Rev. A. 64 (2): 024501. Bibcode:2001PhRvA..64b4501B. doi:10.1103/PhysRevA.64.024501.
  61. ^ Junqin, Li; Zilong, Zhao; Martin, Andersson; Xuemei, Zhang; Chongyang, Chen (2012). "Theoretical study for the electron affinities of negative ions with the MCDHF method". J. Phys. B: At. Mol. Opt. Phys. 45 (16): 165004. Bibcode:2012JPhB...45p5004L. doi:10.1088/0953-4075/45/16/165004.
  62. ^ Leimbach, D.; et al. (2020). "The electron affinity of astatine". Nat. Commun. 11 (1): 3824. doi:10.1038/s41467-020-17599-2. PMC 7393155. PMID 32733029.
  63. ^ a b Landau, A.; Eliav, E.; Ishikawa, Y.; Kaldor, U. (2001). "Benchmark calculations of electron affinities of the alkali atoms sodium to eka-francium (element 119)". J. Chem. Phys. 115 (6): 2389. Bibcode:2001JChPh.115.2389L. doi:10.1063/1.1386413.
  64. ^ Andersen, T. (2004). "Atomic negative ions: Structure, dynamics and collisions". Physics Reports. 394 (4–5): 157–313. Bibcode:2004PhR...394..157A. doi:10.1016/j.physrep.2004.01.001.
  65. ^ a b c d e f g h i j k l m n Guo, Y.; Whitehead, M.A. (1989). "Electron affinities of alkaline-earth element calculated with the local-spin-density-functional theory". Physical Review A. 40 (1): 28–34. doi:10.1103/PhysRevA.40.28. PMID 9901864.
  66. ^ Eliav, Ephraim; Fritzsche, Stephan; Kaldor, Uzi (2015). "Electronic structure theory of the superheavy elements". Nucl. Phys. A. 944: 518–550. Bibcode:2015NuPhA.944..518E. doi:10.1016/j.nuclphysa.2015.06.017.
  67. ^ a b c d Borschevsky, Anastasia; Pershina, Valeria; Kaldor, Uzi; Eliav, Ephraim. "Fully relativistic ab initio studies of superheavy elements" (PDF). www.kernchemie.uni-mainz.de. Johannes Gutenberg University Mainz. Archived from the original (PDF) on 15 January 2018. Retrieved 15 January 2018.
  68. ^ Eliav, Ephraim; Kaldor, Uzi; Ishikawa, Y; Pyykkö, P (1996). "Element 118: The First Rare Gas with an Electron Affinity". Phys. Rev. Lett. 77 (27): 5350–5352. Bibcode:1996PhRvL..77.5350E. doi:10.1103/PhysRevLett.77.5350. PMID 10062781.
  69. ^ Borschevsky, A.; Pershina, V.; Eliav, E.; Kaldor, U. (2013). "Ab initio predictions of atomic properties of element 120 and its lighter group-2 homologues". Phys. Rev. A. 87 (2): 022502–1–8. Bibcode:2013PhRvA..87b2502B. doi:10.1103/PhysRevA.87.022502.
  70. ^ a b c d e Rayner-Canham Appendix 5: Data summarised from J. E. Huheey et al., Inorganic Chemistry, 4th ed. (New York: HarperCollins, 1993) [1]
  71. ^ According to NIST as concerns Boron trifluoride, the Magnetron method, lacking mass analysis, is not considered reliable.

See also