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This wikipedia has two lists of oxidation states of the elements. One is used in the infoboxes, an other one in the List of the OS'es. Both value sets (two sets for each element) are listed on this page. Ideally, these two lists are the same. However, as of 2021 there are some differences. These are listed, with a diff code in the rightmost column. For example, it can say "+1, 0" marking the values that differ.

The check

[edit]

To do: per element, try to eliminate the difference. In general, when challenged, sourced values can be added (to the other list). Code "b" says there is a difference in bolded (main OS) values. These too should be the same.

These are the status codes (difference):

  • +1, +2: different values
  • 0: 0-value differs
  • b: bolding of a value differs
  • ok: values are the same

These are the data pages to edit (these are the live pages):

Not checked:

  • not: (+1): predicted values (see E104, Rf, and heavier)
  • not: −1: links
  • not: <ref>: references used

Datacheck table

[edit]
  Noble gas
+1 Bold values are main oxidation states
Oxidation states of the elements
Element Negative states Positive states Group Notes
−5 −4 −3 −2 −1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9
Z
1 hydrogen H −1 +1 1
2 helium He 18
3 lithium Li +1 1
4 beryllium Be 0 +1 +2 2 [1] [2]
5 boron B −5 −1 0 +1 +2 +3 13 [3] [4][5] [6] [6][7][8]
6 carbon C −4 −3 −2 −1 0 +1 +2 +3 +4 14 [6] [6] [6] [6] [6] [6]
7 nitrogen N −3 −2 −1 0 +1 +2 +3 +4 +5 15 [6] [6][9] [6] [6] [6]
8 oxygen O −2 −1 0 +1 +2 16 [6] [6] [6]
9 fluorine F −1 17
10 neon Ne 18
11 sodium Na −1 0 +1 1 [6][10]
12 magnesium Mg 0 +1 +2 2 [11] [12]
13 aluminium Al −2 −1 0 +1 +2 +3 13 [13] [6][14] [15] ?
14 silicon Si −4 −3 −2 −1 0 +1 +2 +3 +4 14 [6] [6] [6][16] [6][17] [6] [6]
15 phosphorus P −3 −2 −1 0 +1 +2 +3 +4 +5 15 [6] [6][18] [6][19] [6] [6]
16 sulfur S −2 −1 0 +1 +2 +3 +4 +5 +6 16 [6] [6] [6] [6]
17 chlorine Cl −1 +1 +2 +3 +4 +5 +6 +7 17 [6] [6] [6]
18 argon Ar 18
19 potassium K −1 +1 1 ?
20 calcium Ca +1 +2 2 [20]
21 scandium Sc 0 +1 +2 +3 3 [21] [22] [23]
22 titanium Ti −2 −1 0 +1 +2 +3 +4 4 [6][24] [25] [6] [6] ?
23 vanadium V −3 −1 0 +1 +2 +3 +4 +5 5 [6] [6] [6] [6] [6] ?
24 chromium Cr −4 −2 −1 0 +1 +2 +3 +4 +5 +6 6 [6] [6] [6] [6] [6] [6] ?
25 manganese Mn −3 −1 0 +1 +2 +3 +4 +5 +6 +7 7 [6] [6] [6], [6] [6], [6] ?
26 iron Fe −4 −2 −1 0 +1 +2 +3 +4 +5 +6 +7 8 [6] [6] [26] [6] [27] [6] [28] ?
27 cobalt Co −3 −1 0 +1 +2 +3 +4 +5 9 [6] [6] [6] [29] ?
28 nickel Ni −2 −1 0 +1 +2 +3 +4 10 [6] [30] [6] [31] ?
29 copper Cu −2 0 +1 +2 +3 +4 11 [32] [6] [6] [6] ?
30 zinc Zn −2 0 +1 +2 12 ?
31 gallium Ga −5 −4 −3 −2 −1 0 +1 +2 +3 13 [33] [6] [6][34] ?
32 germanium Ge −4 −3 −2 −1 0 +1 +2 +3 +4 14 [35] [6] [6] ?
33 arsenic As −3 −2 −1 0 +1 +2 +3 +4 +5 15 [36] [37] [6] ?
34 selenium Se −2 −1 0 +1 +2 +3 +4 +5 +6 16 [38] [39] ?
35 bromine Br −1 +1 +2 +3 +4 +5 +7 17 [40] [6] [6]
36 krypton Kr +1 +2 18 ?
37 rubidium Rb −1 +1 1 ?
38 strontium Sr +1 +2 2 [41]
39 yttrium Y 0 +1 +2 +3 3 [42] [6] ?
40 zirconium Zr +1 +2 +3 +4 4 [6] [43][44] [6]
41 niobium Nb −3 −1 0 +1 +2 +3 +4 +5 5 [6] [6] [6] [6] ?
42 molybdenum Mo −4 −2 −1 0 +1 +2 +3 +4 +5 +6 6 [6] [6] [6] [6] [6] [6] ?
43 technetium Tc −3 −1 +1 +2 +3 +4 +5 +6 +7 7 [6] [6] [6] [6] [6] [6] [6]
44 ruthenium Ru −4 −2 +1 +2 +3 +4 +5 +6 +7 +8 8 [6] [6] [6] [6] [6] [6] [6] ?
45 rhodium Rh −3 −1 +1 +2 +3 +4 +5 +6 +7 9 [45] [6] [6] [6] [6] [6] [6] [46]
46 palladium Pd +1 +2 +3 +4 +5 10 [47] ?
47 silver Ag −2 −1 0 +1 +2 +3 11 [48] [6] [6] ?
48 cadmium Cd −2 +1 +2 12 ?
49 indium In −5 −2 −1 0 +1 +2 +3 13 [49] [6] [6] [50] ?
50 tin Sn −4 −3 −2 −1 0 +1 +2 +3 +4 14 [51] [52] [53] ?
51 antimony Sb −3 −2 −1 0 +1 +2 +3 +4 +5 15 [54] ?
52 tellurium Te −2 −1 0 +1 +2 +3 +4 +5 +6 16 [6] ?
53 iodine I −1 +1 +2 +3 +4 +5 +6 +7 17 [55] ?
54 xenon Xe +2 +4 +6 +8 18 [56]
55 caesium Cs −1 +1 1 [57]
56 barium Ba +1 +2 2 ?
57 lanthanum La 0 +1 +2 +3 f-block groups [42] [58] [6]
58 cerium Ce +1 +2 +3 +4 f-block groups [6] ?
59 praseodymium Pr 0 +1 +2 +3 +4 +5 f-block groups [42] [59] ?
60 neodymium Nd 0 +2 +3 +4 f-block groups [42] [6]
61 promethium Pm +2 +3 f-block groups ?
62 samarium Sm 0 +1 +2 +3 f-block groups [42] [60] [6]
63 europium Eu 0 +2 +3 f-block groups 0[42]
64 gadolinium Gd 0 +1 +2 +3 f-block groups [42] [6] [6]
65 terbium Tb 0 +1 +2 +3 +4 f-block groups [42] [58] [6] ?
66 dysprosium Dy 0 +1 +2 +3 +4 f-block groups [42] [6] ?
67 holmium Ho 0 +1 +2 +3 f-block groups [42] ?
68 erbium Er 0 +1 +2 +3 f-block groups [42] ?
69 thulium Tm 0 +1 +2 +3 f-block groups [42] [58] [6]
70 ytterbium Yb 0 +1 +2 +3 f-block groups [42] [58] [6]
71 lutetium Lu 0 +1 +2 +3 3 [42] ?
72 hafnium Hf −2 0 +1 +2 +3 +4 4 [6], [6] ?
73 tantalum Ta −3 −1 0 +1 +2 +3 +4 +5 5 [6] [6] [6] [6] ?
74 tungsten W −4 −2 −1 0 +1 +2 +3 +4 +5 +6 6 [6] [6] [6] [6] [6] [6] ?
75 rhenium Re −3 −1 0 +1 +2 +3 +4 +5 +6 +7 7 [6] [6] [6], [6] [6] [6] [6] [6] ?
76 osmium Os −4 −2 −1 0 +1 +2 +3 +4 +5 +6 +7 +8 8 [6] [6] [6] [6] [6] [6] [6] [6] ?
77 iridium Ir −3 −2 −1 +1 +2 +3 +4 +5 +6 +7 +8 +9 9 [6] [6] [6] [6] [6] [61] ?
78 platinum Pt −3 −2 −1 0 +1 +2 +3 +4 +5 +6 10 [6] [6] ?
79 gold Au −3 −2 −1 0 +1 +2 +3 +5 11 [6] [62] [6] [6] ?
80 mercury Hg −2 +1 +2 12 [63]
81 thallium Tl −5 −2 −1 +1 +2 +3 13 [64] ?
82 lead Pb −4 −2 −1 0 +1 +2 +3 +4 14 [6] [65] ?
83 bismuth Bi −3 −2 −1 0 +1 +2 +3 +4 +5 15 [6] [66] [6] ?
84 polonium Po −2 +2 +4 +5 +6 16 [67] [6]
85 astatine At −1 +1 +3 +5 +7 17 [6] [6] [6]
86 radon Rn +2 +6 18 ?
87 francium Fr +1 1
88 radium Ra +2 2
89 actinium Ac +3 f-block groups
90 thorium Th −1 +1 +2 +3 +4 f-block groups [68] [6] [6] ?
91 protactinium Pa +2 +3 +4 +5 f-block groups [6] [6] ?
92 uranium U −1 +1 +2 +3 +4 +5 +6 f-block groups [68] [69] [6] [6] ?
93 neptunium Np +2 +3 +4 +5 +6 +7 f-block groups [6] [70] [6] [6] ?
94 plutonium Pu +2 +3 +4 +5 +6 +7 +8 f-block groups [6], [6] [6] [6] ?
95 americium Am +2 +3 +4 +5 +6 +7 f-block groups [6] [6] [6] [6]
96 curium Cm +3 +4 +5 +6 f-block groups [6] [71] [72]
97 berkelium Bk +2 +3 +4 +5 f-block groups [6] [71] ?
98 californium Cf +2 +3 +4 +5 f-block groups [6] [6] [73][71]
99 einsteinium Es +2 +3 +4 f-block groups [6]
100 fermium Fm +2 +3 f-block groups [6]
101 mendelevium Md +2 +3 f-block groups [6]
102 nobelium No +2 +3 f-block groups [6]
103 lawrencium Lr +3 3
104 rutherfordium Rf +3 +4 4 [74]
105 dubnium Db +3 +4 +5 5 [74]
106 seaborgium Sg +3 +4 +5 +6 6 [74]
107 bohrium Bh +3 +4 +5 +7 7 [74]
108 hassium Hs +3 +4 +6 +8 8 [74]
109 meitnerium Mt +1 +3 +6 9 [74]
110 darmstadtium Ds +2 +4 +6 10 [74]
111 roentgenium Rg −1 +3 +5 11 [74]
112 copernicium Cn +2 +4 12 [74]
113 nihonium Nh 13
114 flerovium Fl 14
115 moscovium Mc 15
116 livermorium Lv −2 +4 16 [75]
117 tennessine Ts −1 +5 17
118 oganesson Og −1 +1 +2 +4 +6 18 [74] [76] [77] [77] [74]

See also

[edit]
Articles
Data pages
Datacheck

References

[edit]
  1. ^ Be(0) has been observed; see "Beryllium(0) Complex Found". Chemistry Europe. 13 June 2016.
  2. ^ "Beryllium: Beryllium(I) Hydride compound data" (PDF). bernath.uwaterloo.ca. Retrieved 2007-12-10.
  3. ^ B(−5) has been observed in Al3BC, see Schroeder, Melanie. "Eigenschaften von borreichen Boriden und Scandium-Aluminium-Oxid-Carbiden" (in German). p. 139.
  4. ^ B(−1) has been observed in magnesium diboride (MgB2), see Keeler, James; Wothers, Peter (2014). Chemical Structure and Reactivity: An Integrated Approach. Oxford University Press. ISBN 9780199604135.
  5. ^ Braunschweig, H.; Dewhurst, R. D.; Hammond, K.; Mies, J.; Radacki, K.; Vargas, A. (2012). "Ambient-Temperature Isolation of a Compound with a Boron-Boron Triple Bond". Science. 336 (6087): 1420–2. Bibcode:2012Sci...336.1420B. doi:10.1126/science.1221138. PMID 22700924. S2CID 206540959.
  6. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx cy cz da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz ea eb ec ed ee ef eg eh ei ej ek el em en eo ep eq er es et eu ev ew ex ey ez fa fb fc fd fe ff fg fh fi fj fk fl fm fn fo fp fq fr fs ft fu fv fw fx fy fz ga gb gc gd ge gf gg gh gi gj gk Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 28. ISBN 978-0-08-037941-8.
  7. ^ Zhang, K.Q.; Guo, B.; Braun, V.; Dulick, M.; Bernath, P.F. (1995). "Infrared Emission Spectroscopy of BF and AIF" (PDF). J. Molecular Spectroscopy. 170 (1): 82. Bibcode:1995JMoSp.170...82Z. doi:10.1006/jmsp.1995.1058.
  8. ^ Schroeder, Melanie. Eigenschaften von borreichen Boriden und Scandium-Aluminium-Oxid-Carbiden (PDF) (in German). p. 139.
  9. ^ Tetrazoles contain a pair of double-bonded nitrogen atoms with oxidation state 0 in the ring. A Synthesis of the parent 1H-tetrazole, CH2N4 (two atoms N(0)) is given in Henry, Ronald A.; Finnegan, William G. (1954). "An Improved Procedure for the Deamination of 5-Aminotetrazole". Journal of the American Chemical Society. 76 (1): 290–291. doi:10.1021/ja01630a086. ISSN 0002-7863.
  10. ^ The compound NaCl has been shown in experiments to exists in several unusual stoichiometries under high pressure, including Na3Cl in which contains a layer of sodium(0) atoms; see Zhang, W.; Oganov, A. R.; Goncharov, A. F.; Zhu, Q.; Boulfelfel, S. E.; Lyakhov, A. O.; Stavrou, E.; Somayazulu, M.; Prakapenka, V. B.; Konôpková, Z. (2013). "Unexpected Stable Stoichiometries of Sodium Chlorides". Science. 342 (6165): 1502–1505. arXiv:1310.7674. Bibcode:2013Sci...342.1502Z. doi:10.1126/science.1244989. PMID 24357316. S2CID 15298372.
  11. ^ Mg(0) has been synthesized in a compound containing a Na2Mg22+ cluster coordinated to a bulky organic ligand; see Rösch, B.; Gentner, T. X.; Eyselein, J.; Langer, J.; Elsen, H.; Li, W.; Harder, S. (2021). "Strongly reducing magnesium(0) complexes". Nature. 592 (7856): 717–721. Bibcode:2021Natur.592..717R. doi:10.1038/s41586-021-03401-w. PMID 33911274. S2CID 233447380
  12. ^ Bernath, P. F.; Black, J. H. & Brault, J. W. (1985). "The spectrum of magnesium hydride" (PDF). Astrophysical Journal. 298: 375. Bibcode:1985ApJ...298..375B. doi:10.1086/163620.. See also Low valent magnesium compounds.
  13. ^ Unstable carbonyl of Al(0) has been detected in reaction of Al2(CH3)6 with carbon monoxide; see Sanchez, Ramiro; Arrington, Caleb; Arrington Jr., C. A. (December 1, 1989). "Reaction of trimethylaluminum with carbon monoxide in low-temperature matrixes". American Chemical Society. 111 (25): 9110-9111. doi:10.1021/ja00207a023. OSTI 6973516.
  14. ^ Dohmeier, C.; Loos, D.; Schnöckel, H. (1996). "Aluminum(I) and Gallium(I) Compounds: Syntheses, Structures, and Reactions". Angewandte Chemie International Edition. 35 (2): 129–149. doi:10.1002/anie.199601291.
  15. ^ Tyte, D. C. (1964). "Red (B2Π–A2σ) Band System of Aluminium Monoxide". Nature. 202 (4930): 383. Bibcode:1964Natur.202..383T. doi:10.1038/202383a0. S2CID 4163250.
  16. ^ "New Type of Zero-Valent Tin Compound". Chemistry Europe. 27 August 2016.
  17. ^ Ram, R. S.; et al. (1998). "Fourier Transform Emission Spectroscopy of the A2D–X2P Transition of SiH and SiD" (PDF). J. Mol. Spectr. 190 (2): 341–352. doi:10.1006/jmsp.1998.7582. PMID 9668026.
  18. ^ Wang, Yuzhong; Xie, Yaoming; Wei, Pingrong; King, R. Bruce; Schaefer, Iii; Schleyer, Paul v. R.; Robinson, Gregory H. (2008). "Carbene-Stabilized Diphosphorus". Journal of the American Chemical Society. 130 (45): 14970–1. doi:10.1021/ja807828t. PMID 18937460.
  19. ^ Ellis, Bobby D.; MacDonald, Charles L. B. (2006). "Phosphorus(I) Iodide: A Versatile Metathesis Reagent for the Synthesis of Low Oxidation State Phosphorus Compounds". Inorganic Chemistry. 45 (17): 6864–74. doi:10.1021/ic060186o. PMID 16903744.
  20. ^ Krieck, Sven; Görls, Helmar; Westerhausen, Matthias (2010). "Mechanistic Elucidation of the Formation of the Inverse Ca(I) Sandwich Complex [(thf)3Ca(μ-C6H3-1,3,5-Ph3)Ca(thf)3] and Stability of Aryl-Substituted Phenylcalcium Complexes". Journal of the American Chemical Society. 132 (35): 12492–12501. doi:10.1021/ja105534w. PMID 20718434.
  21. ^ Cloke, F. Geoffrey N.; Khan, Karl & Perutz, Robin N. (1991). "η-Arene complexes of scandium(0) and scandium(II)". J. Chem. Soc., Chem. Commun. (19): 1372–1373. doi:10.1039/C39910001372.
  22. ^ Smith, R. E. (1973). "Diatomic Hydride and Deuteride Spectra of the Second Row Transition Metals". Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences. 332 (1588): 113–127. Bibcode:1973RSPSA.332..113S. doi:10.1098/rspa.1973.0015. S2CID 96908213.
  23. ^ McGuire, Joseph C.; Kempter, Charles P. (1960). "Preparation and Properties of Scandium Dihydride". Journal of Chemical Physics. 33 (5): 1584–1585. Bibcode:1960JChPh..33.1584M. doi:10.1063/1.1731452.
  24. ^ Jilek, Robert E.; Tripepi, Giovanna; Urnezius, Eugenijus; Brennessel, William W.; Young, Victor G. Jr.; Ellis, John E. (2007). "Zerovalent titanium–sulfur complexes. Novel dithiocarbamato derivatives of Ti(CO)6:[Ti(CO)4(S2CNR2)]−". Chem. Commun. (25): 2639–2641. doi:10.1039/B700808B. PMID 17579764.
  25. ^ Andersson, N.; et al. (2003). "Emission spectra of TiH and TiD near 938 nm". J. Chem. Phys. 118 (8): 10543. Bibcode:2003JChPh.118.3543A. doi:10.1063/1.1539848.
  26. ^ Ram, R. S.; Bernath, P. F. (2003). "Fourier transform emission spectroscopy of the g4Δ–a4Δ system of FeCl". Journal of Molecular Spectroscopy. 221 (2): 261. Bibcode:2003JMoSp.221..261R. doi:10.1016/S0022-2852(03)00225-X.
  27. ^ Demazeau, G.; Buffat, B.; Pouchard, M.; Hagenmuller, P. (1982). "Recent developments in the field of high oxidation states of transition elements in oxides stabilization of six-coordinated Iron(V)". Zeitschrift für anorganische und allgemeine Chemie. 491: 60–66. doi:10.1002/zaac.19824910109.
  28. ^ Lu, J.; Jian, J.; Huang, W.; Lin, H.; Li, J; Zhou, M. (2016). "Experimental and theoretical identification of the Fe(VII) oxidation state in FeO4−". Physical Chemistry Chemical Physics. 18 (45): 31125–31131. Bibcode:2016PCCP...1831125L. doi:10.1039/C6CP06753K. PMID 27812577.
  29. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1117–1119. ISBN 978-0-08-037941-8.
  30. ^ Pfirrmann, Stefan; Limberg, Christian; Herwig, Christian; Stößer, Reinhard; Ziemer, Burkhard (2009). "A Dinuclear Nickel(I) Dinitrogen Complex and its Reduction in Single-Electron Steps". Angewandte Chemie International Edition. 48 (18): 3357–61. doi:10.1002/anie.200805862. PMID 19322853.
  31. ^ Carnes, Matthew; Buccella, Daniela; Chen, Judy Y.-C.; Ramirez, Arthur P.; Turro, Nicholas J.; Nuckolls, Colin; Steigerwald, Michael (2009). "A Stable Tetraalkyl Complex of Nickel(IV)". Angewandte Chemie International Edition. 48 (2): 290–4. doi:10.1002/anie.200804435. PMID 19021174.
  32. ^ Moret, Marc-Etienne; Zhang, Limei; Peters, Jonas C. (2013). "A Polar Copper–Boron One-Electron σ-Bond". J. Am. Chem. Soc. 135 (10): 3792–3795. doi:10.1021/ja4006578. PMID 23418750.
  33. ^ Ga(−3) has been observed in LaGa, see Dürr, Ines; Bauer, Britta; Röhr, Caroline (2011). "Lanthan-Triel/Tetrel-ide La(Al,Ga)x(Si,Ge)1-x. Experimentelle und theoretische Studien zur Stabilität intermetallischer 1:1-Phasen" (PDF). Z. Naturforsch. (in German). 66b: 1107–1121.
  34. ^ Hofmann, Patrick (1997). Colture. Ein Programm zur interaktiven Visualisierung von Festkörperstrukturen sowie Synthese, Struktur und Eigenschaften von binären und ternären Alkali- und Erdalkalimetallgalliden (PDF) (Thesis) (in German). PhD Thesis, ETH Zurich. p. 72. doi:10.3929/ethz-a-001859893. hdl:20.500.11850/143357. ISBN 978-3728125972.
  35. ^ "New Type of Zero-Valent Tin Compound". Chemistry Europe. 27 August 2016.
  36. ^ Abraham, Mariham Y.; Wang, Yuzhong; Xie, Yaoming; Wei, Pingrong; Shaefer III, Henry F.; Schleyer, P. von R.; Robinson, Gregory H. (2010). "Carbene Stabilization of Diarsenic: From Hypervalency to Allotropy". Chemistry: A European Journal. 16 (2): 432–5. doi:10.1002/chem.200902840. PMID 19937872.
  37. ^ Ellis, Bobby D.; MacDonald, Charles L. B. (2004). "Stabilized Arsenic(I) Iodide: A Ready Source of Arsenic Iodide Fragments and a Useful Reagent for the Generation of Clusters". Inorganic Chemistry. 43 (19): 5981–6. doi:10.1021/ic049281s. PMID 15360247.
  38. ^ A Se(0) atom has been identified using DFT in [ReOSe(2-pySe)3]; see Cargnelutti, Roberta; Lang, Ernesto S.; Piquini, Paulo; Abram, Ulrich (2014). "Synthesis and structure of [ReOSe(2-Se-py)3]: A rhenium(V) complex with selenium(0) as a ligand". Inorganic Chemistry Communications. 45: 48–50. doi:10.1016/j.inoche.2014.04.003. ISSN 1387-7003.
  39. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
  40. ^ Br(II) is known to occur in bromine monoxide radical; see Kinetics of the bromine monoxide radical + bromine monoxide radical reaction
  41. ^ Colarusso, P.; Guo, B.; Zhang, K.-Q.; Bernath, P. F. (1996). "High-Resolution Infrared Emission Spectrum of Strontium Monofluoride" (PDF). J. Molecular Spectroscopy. 175 (1): 158. Bibcode:1996JMoSp.175..158C. doi:10.1006/jmsp.1996.0019.
  42. ^ a b c d e f g h i j k l m n Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: 17–24. doi:10.1039/CS9932200017. and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry. 688 (1–2): 49–55. doi:10.1016/j.jorganchem.2003.08.028.
  43. ^ Calderazzo, Fausto; Pampaloni, Guido (January 1992). "Organometallics of groups 4 and 5: Oxidation states II and lower". Journal of Organometallic Chemistry. 423 (3): 307–328. doi:10.1016/0022-328X(92)83126-3.
  44. ^ Ma, Wen; Herbert, F. William; Senanayake, Sanjaya D.; Yildiz, Bilge (2015-03-09). "Non-equilibrium oxidation states of zirconium during early stages of metal oxidation". Applied Physics Letters. 106 (10). Bibcode:2015ApPhL.106j1603M. doi:10.1063/1.4914180. hdl:1721.1/104888. ISSN 0003-6951.
  45. ^ Ellis J E. Highly Reduced Metal Carbonyl Anions: Synthesis, Characterization, and Chemical Properties. Adv. Organomet. Chem, 1990, 31: 1-51.
  46. ^ Rh(VII) is known in the RhO3+ cation, see Da Silva Santos, Mayara; Stüker, Tony; Flach, Max; Ablyasova, Olesya S.; Timm, Martin; von Issendorff, Bernd; Hirsch, Konstantin; Zamudio‐Bayer, Vicente; Riedel, Sebastian; Lau, J. Tobias (2022). "The Highest Oxidation State of Rhodium: Rhodium(VII) in [RhO3]+". Angew. Chem. Int. Ed. 61 (38): e202207688. doi:10.1002/anie.202207688. PMC 9544489. PMID 35818987.
  47. ^ Palladium(V) has been identified in complexes with organosilicon compounds containing pentacoordinate palladium; see Shimada, Shigeru; Li, Yong-Hua; Choe, Yoong-Kee; Tanaka, Masato; Bao, Ming; Uchimaru, Tadafumi (2007). "Multinuclear palladium compounds containing palladium centers ligated by five silicon atoms". Proceedings of the National Academy of Sciences. 104 (19): 7758–7763. doi:10.1073/pnas.0700450104. PMC 1876520. PMID 17470819.
  48. ^ Ag(0) has been observed in carbonyl complexes in low-temperature matrices: see McIntosh, D.; Ozin, G. A. (1976). "Synthesis using metal vapors. Silver carbonyls. Matrix infrared, ultraviolet-visible, and electron spin resonance spectra, structures, and bonding of silver tricarbonyl, silver dicarbonyl, silver monocarbonyl, and disilver hexacarbonyl". J. Am. Chem. Soc. 98 (11): 3167–75. doi:10.1021/ja00427a018.
  49. ^ Unstable In(0) carbonyls and clusters have been detected, see [1], p. 6.
  50. ^ Guloy, A. M.; Corbett, J. D. (1996). "Synthesis, Structure, and Bonding of Two Lanthanum Indium Germanides with Novel Structures and Properties". Inorganic Chemistry. 35 (9): 2616–22. doi:10.1021/ic951378e. PMID 11666477.
  51. ^ "New Type of Zero-Valent Tin Compound". Chemistry Europe. 27 August 2016.
  52. ^ "HSn". NIST Chemistry WebBook. National Institute of Standards and Technology. Retrieved 23 January 2013.
  53. ^ "SnH3". NIST Chemistry WebBook. National Institure of Standards and Technology. Retrieved 23 January 2013.
  54. ^ Anastas Sidiropoulos (2019). "Studies of N-heterocyclic Carbene (NHC) Complexes of the Main Group Elements" (PDF). p. 39. doi:10.4225/03/5B0F4BDF98F60. S2CID 132399530.
  55. ^ I(II) is known to exist in monoxide (IO); see Nikitin, I V (31 August 2008). "Halogen monoxides". Russian Chemical Reviews. 77 (8): 739–749. Bibcode:2008RuCRv..77..739N. doi:10.1070/RC2008v077n08ABEH003788. S2CID 250898175.
  56. ^ Harding, Charlie; Johnson, David Arthur; Janes, Rob (2002). Elements of the p block. Great Britain: Royal Society of Chemistry. pp. 93–94. ISBN 0-85404-690-9.
  57. ^ Dye, J. L. (1979). "Compounds of Alkali Metal Anions". Angewandte Chemie International Edition. 18 (8): 587–598. doi:10.1002/anie.197905871.
  58. ^ a b c d La(I), Pr(I), Tb(I), Tm(I), and Yb(I) have been observed in MB8− clusters; see Li, Wan-Lu; Chen, Teng-Teng; Chen, Wei-Jia; Li, Jun; Wang, Lai-Sheng (2021). "Monovalent lanthanide(I) in borozene complexes". Nature Communications. 12 (1): 6467. doi:10.1038/s41467-021-26785-9. PMC 8578558. PMID 34753931.
  59. ^ Chen, Xin; et al. (2019-12-13). "Lanthanides with Unusually Low Oxidation States in the PrB3– and PrB4– Boride Clusters". Inorganic Chemistry. 58 (1): 411–418. doi:10.1021/acs.inorgchem.8b02572. PMID 30543295. S2CID 56148031.
  60. ^ SmB6- cluster anion has been reported and contains Sm in rare oxidation state of +1; see Paul, J. Robinson; Xinxing, Zhang; Tyrel, McQueen; Kit, H. Bowen; Anastassia, N. Alexandrova (2017). "SmB6– Cluster Anion: Covalency Involving f Orbitals". J. Phys. Chem. A 2017,? 121,? 8,? 1849–1854. 121 (8): 1849–1854. doi:10.1021/acs.jpca.7b00247. PMID 28182423. S2CID 3723987..
  61. ^ Wang, Guanjun; Zhou, Mingfei; Goettel, James T.; Schrobilgen, Gary G.; Su, Jing; Li, Jun; Schlöder, Tobias; Riedel, Sebastian (2014). "Identification of an iridium-containing compound with a formal oxidation state of IX". Nature. 514 (7523): 475–477. Bibcode:2014Natur.514..475W. doi:10.1038/nature13795. PMID 25341786. S2CID 4463905.
  62. ^ Mézaille, Nicolas; Avarvari, Narcis; Maigrot, Nicole; Ricard, Louis; Mathey, François; Le Floch, Pascal; Cataldo, Laurent; Berclaz, Théo; Geoffroy, Michel (1999). "Gold(I) and Gold(0) Complexes of Phosphinine‐Based Macrocycles". Angewandte Chemie International Edition. 38 (21): 3194–3197. doi:10.1002/(SICI)1521-3773(19991102)38:21<3194::AID-ANIE3194>3.0.CO;2-O. PMID 10556900.
  63. ^ Brauer, G.; Haucke, W. (1936-06-01). "Kristallstruktur der intermetallischen Phasen MgAu und MgHg". Zeitschrift für Physikalische Chemie. 33B (1): 304–310. doi:10.1515/zpch-1936-3327. ISSN 2196-7156. MgHg then lends itself to an oxidation state of +2 for Mg and -2 for Hg because it consists entirely of these polar bonds with no evidence of electron unpairing. (translated)
  64. ^ Dong, Z.-C.; Corbett, J. D. (1996). "Na23K9Tl15.3: An Unusual Zintl Compound Containing Apparent Tl57−, Tl48−, Tl37−, and Tl5− Anions". Inorganic Chemistry. 35 (11): 3107–12. doi:10.1021/ic960014z. PMID 11666505.
  65. ^ Pb(0) carbonyls have been observered in reaction between lead atoms and carbon monoxide; see Ling, Jiang; Qiang, Xu (2005). "Observation of the lead carbonyls PbnCO (n=1–4): Reactions of lead atoms and small clusters with carbon monoxide in solid argon". The Journal of Chemical Physics. 122 (3): 034505. 122 (3): 34505. Bibcode:2005JChPh.122c4505J. doi:10.1063/1.1834915. ISSN 0021-9606. PMID 15740207.
  66. ^ Bi(0) state exists in a N-heterocyclic carbene complex of dibismuthene; see Deka, Rajesh; Orthaber, Andreas (May 9, 2022). "Carbene chemistry of arsenic, antimony, and bismuth: origin, evolution and future prospects". Royal Society of Chemistry. 51 (22): 8540–8556. doi:10.1039/d2dt00755j. PMID 35578901. S2CID 248675805.
  67. ^ Thayer, John S. (2010). "Relativistic Effects and the Chemistry of the Heavier Main Group Elements". Relativistic Methods for Chemists. Challenges and Advances in Computational Chemistry and Physics. 10: 78. doi:10.1007/978-1-4020-9975-5_2. ISBN 978-1-4020-9974-8.
  68. ^ a b Th(-I) and U(-I) have been detected in the gas phase as octacarbonyl anions; see Chaoxian, Chi; Sudip, Pan; Jiaye, Jin; Luyan, Meng; Mingbiao, Luo; Lili, Zhao; Mingfei, Zhou; Gernot, Frenking (2019). "Octacarbonyl Ion Complexes of Actinides [An(CO)8]+/− (An=Th, U) and the Role of f Orbitals in Metal–Ligand Bonding". Chemistry (Weinheim an der Bergstrasse, Germany). 25 (50): 11772–11784. 25 (50): 11772–11784. doi:10.1002/chem.201902625. ISSN 0947-6539. PMC 6772027. PMID 31276242.
  69. ^ Morss, L.R.; Edelstein, N.M.; Fuger, J., eds. (2006). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Netherlands: Springer. ISBN 978-9048131464.
  70. ^ Np(II), (III) and (IV) have been observed, see Dutkiewicz, Michał S.; Apostolidis, Christos; Walter, Olaf; Arnold, Polly L (2017). "Reduction chemistry of neptunium cyclopentadienide complexes: from structure to understanding". Chem. Sci. 8 (4): 2553–2561. doi:10.1039/C7SC00034K. PMC 5431675. PMID 28553487.
  71. ^ a b c Kovács, Attila; Dau, Phuong D.; Marçalo, Joaquim; Gibson, John K. (2018). "Pentavalent Curium, Berkelium, and Californium in Nitrate Complexes: Extending Actinide Chemistry and Oxidation States". Inorg. Chem. 57 (15). American Chemical Society: 9453–9467. doi:10.1021/acs.inorgchem.8b01450. OSTI 1631597. PMID 30040397. S2CID 51717837.
  72. ^ Domanov, V. P.; Lobanov, Yu. V. (October 2011). "Formation of volatile curium(VI) trioxide CmO3". Radiochemistry. 53 (5). SP MAIK Nauka/Interperiodica: 453–6. doi:10.1134/S1066362211050018. S2CID 98052484.
  73. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 1265. ISBN 978-0-08-037941-8.
  74. ^ a b c d e f g h i j k Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. ISBN 978-1-4020-3555-5.
  75. ^ Thayer, John S. (2010). "Relativistic Effects and the Chemistry of the Heavier Main Group Elements". Relativistic Methods for Chemists. Challenges and Advances in Computational Chemistry and Physics. 10: 83. doi:10.1007/978-1-4020-9975-5_2. ISBN 978-1-4020-9974-8.
  76. ^ Han, Young-Kyu; Bae, Cheolbeom; Son, Sang-Kil; Lee, Yoon Sup (2000). "Spin–orbit effects on the transactinide p-block element monohydrides MH (M=element 113–118)". Journal of Chemical Physics. 112 (6): 2684. Bibcode:2000JChPh.112.2684H. doi:10.1063/1.480842.
  77. ^ a b Kaldor, Uzi; Wilson, Stephen (2003). Theoretical Chemistry and Physics of Heavy and Superheavy Elements. Springer. p. 105. ISBN 978-1402013713. Retrieved 2008-01-18.
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