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Template:Element-symbol-to-oxidation-state-data

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  • common:
  • notable:
  • predicted:
Template documentation[view] [edit] [history] [purge]

Editing oxidation state data

[edit]

The oxidation state data appears in three sections:

  1. common values from a singles standard reference (TODO). These values should not be changed without consensus on the Talk page.
  2. notable values from experiments, with reliable sources
  3. predicted values from theory, with reliable sources.

Each section has one entry for each element in the period table.

Each entry has strict limits to allow text processing.

  • Each element result in a string
  • Each string oxidation-state-number values
    • an oxidation-state-number eg "+3," starts with
      • a space or a newline, followed by
      • a math minus sign (not a dash) OR
      • a plus OR
      • nothing
      • followed by number,
      • followed by comma (every entry including the last one),
    • a referenced-oxidation-state-number is an oxidation-state-number followed by
      • a <ref>...</ref> tag, or
      • a <sup>?</sup> tag

The common entries are oxidation-state-number values. Do not include 0 (zero) in the common set.

The notable and predicted entries are referenced-oxidation-state-number values. Do not include formatting.

List of oxidation states of the elements

[edit]

Changes to the data for an element can be previewed using this list with the standard wikipedia editor "Show Preview" option. You may need to click "Reload" on that panel.

  Noble gas
+1 Bold values are main oxidation states
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 0 +1 1 [1]
4 beryllium Be 0 +1 +2 2 [2] [3]
5 boron B −5 −1 0 +1 +2 +3 13 [4] [5][6] ?
6 carbon C −4 +4 14 [7]
7 nitrogen N −3 −2 −1 0 +1 +2 +3 +4 +5 15 [8] ?
8 oxygen O −2 16
9 fluorine F −1 0 17 [9]
10 neon Ne 18
11 sodium Na −1 0 +1 1 [10] ?
12 magnesium Mg 0 +1 +2 2 [11] [12]
13 aluminium Al −2 −1 0 +1 +2 +3 13 [13] [14] [15] ?
14 silicon Si −4 −3 −2 −1 0 +1 +2 +3 +4 14 [16] [17] ?
15 phosphorus P −3 −2 −1 0 +1 +2 +3 +4 +5 15 [18] [19] ?
16 sulfur S −2 −1 0 +1 +2 +3 +4 +5 +6 16 ?
17 chlorine Cl −1 +1 +2 +3 +4 +5 +6 +7 17 ?
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 +4 4 [24] [25] ?
23 vanadium V −3 −1 0 +1 +5 5 ?
24 chromium Cr −4 −2 −1 0 +1 +3 +4 +5 +6 6 ?
25 manganese Mn −3 −1 0 +1 +2 +4 +5 +7 7 ?
26 iron Fe −4 −2 −1 0 +1 +2 +3 +4 +5 +6 +7 8 [26] [27] [28] ?
27 cobalt Co −3 −1 0 +1 +2 +3 +4 +5 9 [29] ?
28 nickel Ni −2 −1 0 +1 +2 +3 +4 10 [30] [31] ?
29 copper Cu −2 0 +2 +3 +4 11 [32] ?
30 zinc Zn −2 0 +1 +2 12 ?
31 gallium Ga −5 −4 −3 −2 −1 0 +1 +2 +3 13 [33] [34] ?
32 germanium Ge −4 −3 −2 −1 0 +1 +2 +3 +4 14 [35] ?
33 arsenic As −3 −2 −1 0 +1 +2 +3 +4 +5 15 [36] [37] ?
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] ?
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] ?
40 zirconium Zr +2 +4 4 [43] [44]
41 niobium Nb −3 −1 0 +1 +2 +3 +4 +5 5 ?
42 molybdenum Mo −4 −2 −1 0 +1 +2 +3 +4 +5 +6 6 ?
43 technetium Tc −1 +1 +2 +3 +4 +5 +6 +7 7 ?
44 ruthenium Ru −4 −2 0 +1 +2 +3 +4 +5 +6 +7 +8 8 ?
45 rhodium Rh −3 −1 +1 +2 +3 +4 +5 +6 +7 9 [45], [46] ?
46 palladium Pd +1 +2 +3 +4 +5 10 [47] ?
47 silver Ag −2 −1 0 +1 +2 +3 11 [48] ?
48 cadmium Cd −2 +1 +2 12 ?
49 indium In −5 −2 −1 0 +1 +2 +3 13 [49] [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 ?
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] ?
58 cerium Ce +1 +2 +3 +4 f-block groups ?
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] ?
61 promethium Pm +2 +3 f-block groups ?
62 samarium Sm 0 +1 +2 +3 f-block groups [42] [60] ?
63 europium Eu 0 +2 +3 f-block groups [42]
64 gadolinium Gd 0 +1 +2 +3 f-block groups [42] ?
65 terbium Tb 0 +1 +2 +3 +4 f-block groups [42] [58] ?
66 dysprosium Dy 0 +1 +2 +3 +4 f-block groups [42] ?
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] ?
70 ytterbium Yb 0 +1 +2 +3 f-block groups [42] [58] ?
71 lutetium Lu 0 +1 +2 +3 3 [42] ?
72 hafnium Hf −2 0 +1 +2 +3 +4 4 ?
73 tantalum Ta −3 −1 0 +1 +2 +3 +4 +5 5 ?
74 tungsten W −4 −2 −1 0 +1 +2 +3 +4 +5 +6 6 ?
75 rhenium Re −3 −1 0 +1 +2 +4 +5 +6 7 ?
76 osmium Os −4 −2 −1 0 +1 +4 +5 +6 +7 8 ?
77 iridium Ir −3 −2 −1 +2 +3 +4 +5 +6 +7 +8 +9 9 [61] ?
78 platinum Pt −3 −2 −1 0 +1 +2 +3 +4 +5 +6 10 ?
79 gold Au −3 −2 −1 0 +2 +3 +5 11 −1,[62] ?
80 mercury Hg −2 +1 +2 12
81 thallium Tl −5 −2 −1 +1 +2 +3 13 [63] ?
82 lead Pb −4 −2 −1 0 +1 +2 +3 +4 14 [64] ?
83 bismuth Bi −3 −2 −1 0 +1 +2 +3 +4 +5 15 [65] ?
84 polonium Po −2 +2 +4 +5 +6 16 [66]
85 astatine At −1 +1 +3 +5 +7 17 [67] ?
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] ?
91 protactinium Pa +2 +3 +4 +5 f-block groups ?
92 uranium U −1 +1 +2 +3 +5 +6 f-block groups [68] [69] ?
93 neptunium Np +2 +3 +4 +5 +6 +7 f-block groups [70] ?
94 plutonium Pu +2 +3 +4 +5 +6 +7 +8 f-block groups ?
95 americium Am +2 +3 +4 +5 +6 +7 f-block groups ?
96 curium Cm +3 +4 +5 +6 f-block groups [71] [72] ?
97 berkelium Bk +2 +3 +4 +5 f-block groups [71] ?
98 californium Cf +2 +3 +4 +5 f-block groups [73][71] ?
99 einsteinium Es +2 +3 +4 f-block groups ?
100 fermium Fm +2 +3 f-block groups ?
101 mendelevium Md +2 +3 f-block groups ?
102 nobelium No +3 f-block groups
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 0 +2 +4 +6 10 (0), [74]
111 roentgenium Rg −1 +3 +5 11 [74]
112 copernicium Cn 0 +2 +4 12 (0), [74]

Template usage

[edit]

This data template is designed for two use cases,

  1. Template:Infobox element
  2. Template:List of oxidation states of the elements

Parameters

[edit]
  • os-formatter: a template that accepts symbol, common, notable, and predicted parameters and produces formatted wikitext.
  • symbol: element to be selected from the data.

The main-space pages that use these templates should include a definition of the reference named "cn" which might look like [75]

Formatters

[edit]

See the doc pages of these templates for examples.

  1. {{Element-symbol-to-oxidation-state-echo}}: debug output, used by default
  2. {{Element-symbol-to-oxidation-state-entry}}: formats for {{Infobox element}}
  3. {{Element-symbol-to-oxidation-state-row}}: formats for one row of {{List of oxidation states of the elements}}

Example debug output

[edit]

The examples use the "echo" formatter and the calls look like {{Element-symbol-to-oxidation-state-data|symbol=C}}

C

[edit]
  • common:−4, +4,
  • notable:+4,[76]
  • predicted:

Fe

[edit]
  • common:+2, +3,
  • notable:−4,? −2,? −1,? 0,? +1,[77] +4,? +5,[78] +6,? +7,[79]
  • predicted:

He

[edit]
  • common:
  • notable:
  • predicted:

Sg

[edit]
  • common:
  • notable:
  • predicted:(+3), (+4), (+5), (+6),[74]

See also

[edit]

Templates used:TODO

  1. ^ Li(0) atoms have been observed in various small lithium-chloride clusters; see Milovanović, Milan; Veličković, Suzana; Veljkovićb, Filip; Jerosimić, Stanka (October 30, 2017). "Structure and stability of small lithium-chloride LinClm(0,1+) (n ≥ m, n = 1–6, m = 1–3) clusters". Physical Chemistry Chemical Physics. 19 (45): 30481–30497. doi:10.1039/C7CP04181K. PMID 29114648.
  2. ^ Be(0) has been observed; see "Beryllium(0) Complex Found". Chemistry Europe. 13 June 2016.
  3. ^ "Beryllium: Beryllium(I) Hydride compound data" (PDF). bernath.uwaterloo.ca. Retrieved 2007-12-10.
  4. ^ 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.
  5. ^ 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.
  6. ^ Schroeder, Melanie. Eigenschaften von borreichen Boriden und Scandium-Aluminium-Oxid-Carbiden (PDF) (in German). p. 139.
  7. ^ "Carbon: Binary compounds". Retrieved 2007-12-06.
  8. ^ 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.
  9. ^ Himmel, D.; Riedel, S. (2007). "After 20 Years, Theoretical Evidence That 'AuF7' Is Actually AuF5·F2". Inorganic Chemistry. 46 (13). 5338–5342. doi:10.1021/ic700431s.
  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. {{cite journal}}: Check date values in: |date= (help)
  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). doi:10.1063/1.4914180. 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.
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  53. ^ "SnH3". NIST Chemistry WebBook. National Institure of Standards and Technology. Retrieved 23 January 2013.
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