Imidazole, protonated

• Formula: C₃H₄N₂⁺
• Molecular weight: 68.0767
• Information on this page:
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
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Ion clustering data

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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

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Clustering reactions

C₃H₄N₂⁺ +  = (C₃H₄N₂⁺ • )

By formula: C₃H₄N₂⁺ + C₃H₄N₂ = (C₃H₄N₂⁺ • C₃H₄N₂)

C₃H₄N₂⁺ +  = (C₃H₄N₂⁺ • )

By formula: C₃H₄N₂⁺ + C₆H₁₁NO₃ = (C₃H₄N₂⁺ • C₆H₁₁NO₃)

(C₃H₄N₂⁺ • ) +  = (C₃H₄N₂⁺ • 2)

By formula: (C₃H₄N₂⁺ • C₆H₁₁NO₃) + C₆H₁₁NO₃ = (C₃H₄N₂⁺ • 2C₆H₁₁NO₃)

C₃H₄N₂⁺ +  = (C₃H₄N₂⁺ • )

By formula: C₃H₄N₂⁺ + H₂O = (C₃H₄N₂⁺ • H₂O)

Bond type: Hydrogen bond (positive ion to hydride)

(C₃H₄N₂⁺ • ) +  = (C₃H₄N₂⁺ • 2)

By formula: (C₃H₄N₂⁺ • H₂O) + H₂O = (C₃H₄N₂⁺ • 2H₂O)

Bond type: Hydrogen bond (positive ion to hydride)

(C₃H₄N₂⁺ • 2) +  = (C₃H₄N₂⁺ • 3)

By formula: (C₃H₄N₂⁺ • 2H₂O) + H₂O = (C₃H₄N₂⁺ • 3H₂O)

Bond type: Hydrogen bond (positive ion to hydride)

References

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

Meot-Ner (Mautner), 1988
Meot-Ner (Mautner), M., Models for Strong Interactions in Proteins and Enzymes. 2. Interactions of Ions with the Peptide Link and Imidazole, J. Am. Chem. Soc., 1988, 110, 10, 3075, https://doi.org/10.1021/ja00218a014 . [all data]

Notes

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• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions
  ΔrS°	Entropy of reaction at standard conditions

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