Guanidine

• Formula: CH₅N₃
• Molecular weight: 59.0705
• IUPAC Standard InChI: InChI=1S/CH5N3/c2-1(3)4/h(H5,2,3,4) Copy

  
• IUPAC Standard InChIKey: ZRALSGWEFCBTJO-UHFFFAOYSA-N Copy
• CAS Registry Number: 113-00-8
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Other names: Aminoformamidine; Aminomethanamidine; Carbamamidine; Carbamidine; Guanidin; Imidourea; Iminourea; (NH2)2C=NH
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• Information on this page:
  • Condensed phase thermochemistry data
  • Gas phase ion energetics data
  • UV/Visible spectrum
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
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Condensed phase thermochemistry 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Gas phase ion energetics 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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

Ionization energy determinations

UV/Visible spectrum

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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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

References

Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, UV/Visible spectrum, Notes

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

Kirpichev, Titov, et al., 1968
Kirpichev, E.P.; Titov, L.V.; Rubtsov, Yu.I.; Gavrilova, L.A., The heat of formation of guanidine, Russ. J. Phys. Chem. (Engl. Transl.), 1968, 42, 269-270. [all data]

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Loudon, Maccoll, et al., 1968
Loudon, A.G.; Maccoll, A.; Webb, K.S., Charge location and fragmentation in mass spectrometry. II. The mass spectra and ionization potentials of some methylguanidines, Advan. Mass Spectrom., 1968, 4, 223. [all data]

Klotz and Askounts, 1947
Klotz, I.M.; Askounts, T., J. Am. Chem. Soc., 1947, 69, 801. [all data]

Notes

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• Symbols used in this document:
  

  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions

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