Template:List of oxidation states of the elements/datacheck

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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 2020 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

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):

In this table, the checking administration (last column in this table):

Not checked:

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

Datacheck table

Template:List of oxidation states of the elements

See also

Articles
Data pages
Datacheck
  • Template:Lts -- the full table (2 row/element)
  • Template:Lts -- Basic row (has check: "if this is the /datacheck page, then add the secong row with the Infobox OS data")
  • Template:Lts -- the extra row

References

  1. 1.0 1.1 1.2 1.3 1.4 Na(−1), K(−1), Rb(−1), and Cs(−1) are known in alkalides; the table by Greenwood and Earnshaw shows −1 only for Na and also erroneously for Li; no lithides are described.
  2. 2.0 2.1 Be(0) has been observed; see Template:Cite web
  3. Be(I) has been observed in beryllium monohydride (BeH); see Template:Cite journal and in [(CAAC)2Be]+• [CAAC = cyclic (alkyl)(amino)carbene], see Template:Cite journal
  4. Template:Cite web
  5. B(−5) has been observed in Al3BC, see Template:Cite news
  6. B(−1) has been observed in magnesium diboride (MgB2), see Template:Cite book
  7. B(0) has been observed in diborynes, see Template:Cite journal
  8. Template:Cite journal
  9. Template:Cite journal
  10. Template:Cite book
  11. Template:Cite web
  12. Template:Cite web
  13. Template:Cite web
  14. Low valent magnesium compounds with Mg(I) have been obtained using bulky ligands; see Template:Cite journal
  15. Template:Cite journal
  16. Al(II) has been observed in aluminium(II) oxide (AlO); see Template:Cite journal, and in dialanes (R2Al—AlR2); see Template:Cite journal
  17. 17.0 17.1 17.2 17.3 17.4 17.5 17.6 17.7 17.8 Negative oxidation states of p-block metals (Al, Ga, In, Sn, Tl, Pb, Bi, Po) and metalloids (Si, Ge, As, Sb, Te, At) may occur in Zintl phases, see: Template:Cite book, and Template:Cite web
  18. Al(−2) has been observed in Sr14[Al4]2[Ge]3, see Template:Cite journal
  19. Template:Cite journal
  20. Template:Cite journal
  21. 21.0 21.1 21.2 21.3 Template:Cite web
  22. Template:Cite journal
  23. P(0) has been observed, see Template:Cite journal
  24. Template:Cite journal
  25. Template:Cite journal
  26. The equilibrium Cl2O6⇌2ClO3 is mentioned by Greenwood and Earnshaw, but it has been refuted, see Template:Cite journal, and Cl2O6 is actually chlorine(V,VII) oxide. However, ClO3 has been observed, see Template:Cite journal
  27. Ar(0) has been observed in argon fluorohydride (HArF) and ArCF22+, see Template:Cite journal
  28. Ca(I) has been observed; see Template:Cite journal
  29. Template:Cite journal
  30. Sc(0) has been observed; see Template:Cite journal
  31. Sc(I) has been observed; see Template:Cite journal
  32. Sc(II) has been observed; see Template:Cite journal
  33. Template:Cite journal
  34. Template:Cite journal
  35. Template:Cite journal
  36. Ti(I) has been observed in [Ti(η6-1,3,5-C6H3iPr3)2][BAr4] (Ar = C6H5, p-C6H4F, 3,5-C6H3(CF3)2); see Template:Cite journal
  37. 37.00 37.01 37.02 37.03 37.04 37.05 37.06 37.07 37.08 37.09 37.10 37.11 Ti(−2), V(−3), Cr(−4), Co(−3), Zr(−2), Nb(−3), Mo(−4), Ru(−2), Rh(−3), Hf(−2), Ta(−3), and W(−4) occur in anionic binary metal carbonyls; see [1], p. 4 (in German); [2], pp. 97–100; [3], p. 239
  38. Ti(−1) has been reported in [Ti(bipy)3], but was later shown to be Ti(+3); see Template:Cite journal However, Ti(−1) occurs in [Ti(η-C6H6] and [Ti(η-C6H5CH3)], see Template:Cite journal
  39. Template:Cite journal
  40. Template:Cite journal
  41. Template:Cite journal
  42. Fe(VII) has been observed in [FeO4]; see Template:Cite journal
  43. Fe(VIII) has been reported; see Template:Cite journal However, its existence has been disputed.
  44. 44.0 44.1 44.2 44.3 44.4 44.5 44.6 44.7 44.8 44.9 Fe(−4), Ru(−4), and Os(−4) have been observed in metal-rich compounds containing octahedral complexes [MIn6−xSnx]; Pt(−3) (as a dimeric anion [Pt–Pt]6−), Cu(−2), Zn(−2), Ag(−2), Cd(−2), Au(−2), and Hg(−2) have been observed (as dimeric and monomeric anions; dimeric ions were initially reported to be [T–T]2− for Zn, Cd, Hg, but later shown to be [T–T]4− for all these elements) in La2Pt2In, La2Cu2In, Ca5Au3, Ca5Ag3, Ca5Hg3, Sr5Cd3, Ca5Zn3(structure (AE2+)5(T–T)4−T2−⋅4e), Yb3Ag2, Ca5Au4, and Ca3Hg2; Au(–3) has been observed in ScAuSn and in other 18-electron half-Heusler compounds. See Template:Cite journal and Template:Cite journal
  45. Template:Cite journal
  46. Template:Cite journal
  47. Template:Cite journal
  48. Template:Greenwood&Earnshaw2nd
  49. Ni(−2) has been observed in Li2[Ni(1,5-COD)2], see Template:Cite journal and Template:Cite journal
  50. Template:Cite journal
  51. Template:Cite journal
  52. Cu(0) has been observed in Cu(tris[2-(diisopropylphosphino)- phenyl]borane), see Template:Cite journal
  53. Template:Cite journal
  54. Zn(0) has been observed; see Template:Cite journal and Template:Cite journal
  55. Zn(I) has been observed in decamethyldizincocene (Zn25–C5Me5)2); see Template:Cite journal
  56. Ga(−2), Ga(−4), and Ga(−5) have been observed in the magnesium gallides MgGa, Mg2Ga, and Mg5Ga2, respectively; see Template:Cite news
  57. Ga(−3) has been observed in LaGa, see Template:Cite journal
  58. Ga(−3) has been observed in LaGa, see Template:Cite journal
  59. Template:Cite thesis
  60. Ge(−1), Ge(−2), and Ge(−3) have been observed in germanides; see Template:Cite book
  61. Template:Cite web
  62. As(0) has been observed; see Template:Cite journal
  63. As(I) has been observed in arsenic(I) iodide (AsI); see Template:Cite journal
  64. As(IV) has been observed in arsenic(IV) hydroxide (As(OH)4) and Template:Chem; see Template:Cite journal
  65. Template:Cite journal
  66. Template:Cite journal
  67. Se(−1) has been observed in diselenides(2−) (Se22−).
  68. Se(I) has been observed in selenium(I) chloride (Se2Cl2); see Template:Cite web
  69. Se(III) has been observed in Se2NBr3; see Template:Cite journal
  70. Se(V) has been observed in Template:Chem and Template:Chem; see Template:Cite journal
  71. Template:Greenwood&Earnshaw
  72. Sr(I) has been observed in strontium monofluoride (SrF); see Template:Cite journal
  73. Template:Cite journal
  74. 74.00 74.01 74.02 74.03 74.04 74.05 74.06 74.07 74.08 74.09 74.10 74.11 74.12 74.13 74.14 74.15 74.16 74.17 74.18 74.19 74.20 74.21 74.22 74.23 74.24 74.25 74.26 74.27 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 Template:Cite journal and Template:Cite journal
  75. Y(I) has been observed in yttrium(I) bromide (YBr); see Template:Cite web
  76. Y(II) has been observed in [(18-crown-6)K][(C5H4SiMe3)3Y]; see Template:Cite journal
  77. Zr(−1) has been reported in [Zr(bipy)3] (see Template:Greenwood&Earnshaw and Template:Cite book), but was later shown to be Zr(+4); see Template:Cite journal
  78. 78.0 78.1 Zr(0) and Hf(0) occur in (η6-(1,3,5-tBu)3C6H3)2M (M=Zr, Hf) and [(η5-C5R5M(CO)4], see Template:Cite book
  79. Template:Cite web
  80. Complexes of Nb(0) and Ta(0) have been observed, see Template:Cite book
  81. 81.0 81.1 Nb(I) and Ta(I) occur in CpNb(CO)4 and CpTa(CO)4, see Template:Cite book and Template:Cite book
  82. Template:Cite web
  83. 83.0 83.1 Template:Cite web
  84. Template:Cite web
  85. Template:Cite journal
  86. Ellis J E. Highly Reduced Metal Carbonyl Anions: Synthesis, Characterization, and Chemical Properties. Adv. Organomet. Chem, 1990, 31: 1-51.
  87. Template:Cite web
  88. Pd(I) has been observed; see Template:Cite journal
  89. Pd(III) has been observed; see Template:Cite book
  90. The Ag ion has been observed in metal ammonia solutions: see Template:Cite journal
  91. Cd(I) has been observed in cadmium(I) tetrachloroaluminate (Cd2(AlCl4)2); see Template:Cite book
  92. In(–5) has been observed in La3InGe, see Template:Cite journal
  93. In(−2) has been observed in Na2In, see [4], p. 69.
  94. Template:Cite journal
  95. Sn(−3) has been observed in [Sn2]6−, e.g. in (Ba2)4+(Mg4)8+Sn4−(Sn2)6−Sn2− (with square (Sn2−)n sheets), see Template:Cite journal
  96. Sn(I) and Sn(III) have been observed in organotin compounds
  97. Template:Cite web
  98. Template:Cite web
  99. Template:Cite web
  100. Sb(−2) has been observed in [Sb2]4−, e.g. in RbBa4[Sb2][Sb][O], see Template:Cite journal
  101. Sb(0) has been observed, see Template:Cite news
  102. Sb(I) and Sb(II) have been observed in organoantimony compounds; for Sb(I), see Template:Cite journal
  103. Sb(IV) has been observed in Template:Chem, see Template:Cite journal
  104. Template:Cite news
  105. Te(I) has been observed in tellurium iodide (TeI), see Template:Cite web
  106. Te(III) has been observed in [Te(N(SiMe3)2)2]+, see Template:Cite journal
  107. Te(V) is mentioned by Greenwood and Earnshaw, but they do not give any example of a Te(V) compound. What was long thought to be ditellurium decafluoride (Te2F10) is actually bis(pentafluorotelluryl) oxide, F5TeOTeF5: see Template:Cite journal However, Te(V) has been observed in Template:Chem, Template:Chem, Template:Chem, and Template:Chem; see Template:Cite journal
  108. I(IV) has been observed in iodine dioxide (IO2); see Template:Cite book
  109. I(VI) has been observed in IO3, IO42−, H5IO6, H2IO52−, H4IO62−, and HIO53−; see Template:Cite journal
  110. Xe compounds: see Xenon
  111. Xe(0) has been observed in tetraxenonogold(II) (AuXe42+).
  112. Xe(I) has been reported in xenon hexafluoroplatinate and xenon hexafluororhodate (see Template:Cite book), however these compounds were later found to contain Xe(II).
  113. Template:Cite journal
  114. Ba(I) has been observed in barium monofluoride (BaF); see Template:Cite journal
  115. La(I) has been observed in lanthanum monohydride (LaH); see Template:Cite journal
  116. Pr(I) has been observed in [PrB4]; see Template:Cite journal
  117. Pr(V) has been observed in [PrO2]+; see Template:Cite journal
  118. Template:Cite journal
  119. Template:Cite journal
  120. Nd(IV) has been observed in unstable solid state compounds; see Template:Holleman&Wiberg
  121. 121.0 121.1 121.2 121.3 121.4 All the lanthanides (La–Lu) in the +2 oxidation state have been observed (except La, Gd, Lu) in dilute, solid solutions of dihalides of these elements in alkaline earth dihalides (see Template:Holleman&Wiberg) and (except Pm) in organometallic molecular complexes, see Lanthanides Topple Assumptions and Template:Cite journal. Additionally, all the lanthanides (La–Lu) form dihydrides (LnH2), dicarbides (LnC2), monosulfides (LnS), monoselenides (LnSe), and monotellurides (LnTe), but for most elements these compounds have Ln3+ ions with electrons delocalized into conduction bands, e. g. Ln3+(H)2(e).
  122. Dy(IV) has been observed in unstable solid state compounds; see Template:Holleman&Wiberg
  123. Hf(I) has been observed in hafnium monobromide (HfBr), see Template:Cite journal
  124. Os(−1) has been observed in Template:Chem; see Template:Cite journal and Template:Cite journal
  125. Ir(−3) has been observed in Ir(CO)33−; see Template:Greenwood&Earnshaw
  126. Ir(VII) has been observed in [(η2-O2)IrO2]+; see C&EN: Iridium dressed to the nines.
  127. Ir(VIII) has been observed in iridium tetroxide (IrO4); see Template:Cite journal
  128. Ir(IX) has been observed in Template:Chem; see Template:Cite journal
  129. Pt(−1) and Pt(−2) have been observed in the barium platinides Ba2Pt and BaPt, respectively: see Template:Cite journal
  130. Pt(I) and Pt(III) have been observed in bimetallic and polymetallic species; see Template:Cite book
  131. Au(0) has been observed, see Template:Cite journal
  132. Hg(IV) has been reported in mercury(IV) fluoride (HgF4); see Template:Cite journal However, it could not be confirmed by later experiments; see Is mercury a transition metal? Template:Webarchive
  133. Tl(−5) has been observed in Na23K9Tl15.3, see Template:Cite journal
  134. Tl(−1) has been observed in caesium thallide (CsTl); see Template:Cite book
  135. Tl(+2) has been observed in tetrakis(hypersilyl)dithallium ([(Me3Si)Si]2Tl—Tl[Si(SiMe3)]2), see Template:Cite journal
  136. Pb(−2) has been observed in BaPb, see Template:Cite book and Template:Cite journal
  137. Pb(+1) and Pb(+3) have been observed in organolead compounds, e.g. hexamethyldiplumbane Pb2(CH3)6; for Pb(I), see Template:Cite journal
  138. Bi(−2) and Bi(−1) occur in Zintl phases, e.g. (Ca2+)22[Bi4]4−([Bi2]4−)4[Bi3−]8; see Template:Cite news
  139. Bi(I) has been observed in bismuth monobromide (BiBr) and bismuth monoiodide (BiI); see Template:Cite book
  140. Bi(+2) has been observed in dibismuthines (R2Bi—BiR2), see Template:Cite book
  141. Bi(IV) has been observed; see Template:Cite journal
  142. Po(V) has been observed in dioxidopolonium(1+) (Template:Chem); see Template:Cite book
  143. Rn(II) has been observed in radon difluoride (RnF2); see Template:Cite journal and Template:Cite journal
  144. Rn(IV) is reported by Greenwood and Earnshaw, but is not known to exist; see Template:Cite book
  145. Rn(VI) is known in radon trioxide (RnO3); see Template:Cite book
  146. Th(I) is known in thorium(I) bromide (ThBr); see Template:Cite book
  147. Th(II) and Th(III) are observed in [ThII{η5-C5H3(SiMe3)2}3] and [ThIII{η5-C5H3(SiMe3)2}3], see Template:Cite journal
  148. U(I) has been observed in uranium monofluoride (UF) and uranium monochloride (UCl), see Template:Cite book
  149. U(II) has been observed in [K(2.2.2-Cryptand)][(C5H4SiMe3)3U], see Template:Cite journal
  150. Np(II), (III) and (IV) have been observed, see Template:Cite journal
  151. Pu(II) has been observed in {Pu[C5H3(SiMe3)2]3}−; see Template:Cite journal
  152. Pu(VIII) has been observed in Template:Chem; see Template:Cite journal Also see Template:Cite journal
  153. Am(VII) has been observed in Template:Chem; see Americium, Das Periodensystem der Elemente für den Schulgebrauch (The periodic table of elements for schools) chemie-master.de (in German), Retrieved 28 November 2010 and Template:Greenwood&Earnshaw
  154. 154.0 154.1 154.2 Cm(V), Bk(V), and Cf(V) have been observed in BkO2+, CfO2+, CmO2(NO3)2, BkO2(NO3)2, and CfO2(NO3)2; see Template:Cite journal
  155. 155.0 155.1 155.2 Template:Cite journal
  156. Cm(VI) has been observed in curium trioxide (CmO3) and dioxidocurium(2+) (Template:Chem); see Template:Cite journal
  157. Cm(VIII) has been reported to possibly occur in curium tetroxide (CmO4); see Template:Cite journal However, new experiments seem to indicate its nonexistence: Template:Cite journal
  158. Template:Cite book
  159. Template:Cite journal
  160. Es(IV) is known in einsteinium(IV) fluoride (EsF4); see Template:Cite journal
  161. Db(V) has been observed in dubnium pentachloride (DbCl5); see Template:Cite web
  162. Sg(VI) has been observed in seaborgium oxide hydroxide (SgO2(OH)2); see Template:Cite journal
  163. Sg(0) has been observed in seaborgium hexacarbonyl (Sg(CO)6); see Template:Cite journal
  164. Bh(VII) has been observed in bohrium oxychloride (BhO3Cl); see "Gas chemical investigation of bohrium (Bh, element 107)" Template:Webarchive, Eichler et al., GSI Annual Report 2000. Retrieved on 2008-02-29
  165. Hs(VIII) has been observed in hassium tetroxide (HsO4); see Template:Cite web
  166. Cn(II) has been observed in copernicium selenide (CnSe); see Template:Cite web