Dipotassium

• Formula: K₂
• Molecular weight: 78.1966
• IUPAC Standard InChI: InChI=1S/2K Copy

  
• IUPAC Standard InChIKey: ZDHURYWHEBEGHO-UHFFFAOYSA-N Copy
• CAS Registry Number: 25681-80-5
• Chemical structure:
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• Information on this page:
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
  • Constants of diatomic molecules
• Data at other public NIST sites:
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Reaction thermochemistry data

Go To: Top, References, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

K₈⁺ +  = (K₈⁺ • )

By formula: K₈⁺ + K₂ = (K₈⁺ • K₂)

K₉⁺ +  = (K₉⁺ • )

By formula: K₉⁺ + K₂ = (K₉⁺ • K₂)

K₁₁⁺ +  = (K₁₁⁺ • )

By formula: K₁₁⁺ + K₂ = (K₁₁⁺ • K₂)

K₁₃⁺ +  = (K₁₃⁺ • )

By formula: K₁₃⁺ + K₂ = (K₁₃⁺ • K₂)

K₃⁺ +  = (K₃⁺ • )

By formula: K₃⁺ + K₂ = (K₃⁺ • K₂)

K₄⁺ +  = (K₄⁺ • )

By formula: K₄⁺ + K₂ = (K₄⁺ • K₂)

K₆⁺ +  = (K₆⁺ • )

By formula: K₆⁺ + K₂ = (K₆⁺ • K₂)

K₅⁺ +  = (K₅⁺ • )

By formula: K₅⁺ + K₂ = (K₅⁺ • K₂)

K₇⁺ +  = (K₇⁺ • )

By formula: K₇⁺ + K₂ = (K₇⁺ • K₂)

K₁₀⁺ +  = (K₁₀⁺ • )

By formula: K₁₀⁺ + K₂ = (K₁₀⁺ • K₂)

K₁₂⁺ +  = (K₁₂⁺ • )

By formula: K₁₂⁺ + K₂ = (K₁₂⁺ • K₂)

References

Go To: Top, Reaction thermochemistry data, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Brechignac, Cahuzac, et al., 1990
Brechignac, C.; Cahuzac, P.; Carlier, F.; De Frutos, M.; Leyniger, J., Cohesive Energies of (K)n+ 5<n<200 from Photoevaporation Experiments, J. Chem. Phys., 1990, 93, 10, 7449, https://doi.org/10.1063/1.459418 . [all data]

Notes

Go To: Top, Reaction thermochemistry data, References

• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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