DL-Valine

• Formula: C₅H₁₁NO₂
• Molecular weight: 117.1463
• IUPAC Standard InChI: InChI=1S/C5H11NO2/c1-3(2)4(6)5(7)8/h3-4H,6H2,1-2H3,(H,7,8) Copy

  
• IUPAC Standard InChIKey: KZSNJWFQEVHDMF-UHFFFAOYSA-N Copy
• CAS Registry Number: 516-06-3
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Stereoisomers:
  • D-Valine
  • Valine
• Other names: Valine, DL-; DL-α-Aminoisovaleric acid; DL-Val; Valine; 2-Amino-3-methylbutanoic acid, DL-; NSC 9755
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • Ion clustering data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • References
  • Notes
• Other data available:
  • UV/Visible spectrum
• Options:
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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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Constant pressure heat capacity of solid

Reaction 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 as indicated in comments:
RCD - Robert C. Dunbar
M - 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

 +  = ( • )

By formula: Na⁺ + C₅H₁₁NO₂ = (Na⁺ • C₅H₁₁NO₂)

C₅H₁₀NO₂⁺ +  = (C₅H₁₀NO₂⁺ • )

By formula: C₅H₁₀NO₂⁺ + C₅H₁₁NO₂ = (C₅H₁₀NO₂⁺ • C₅H₁₁NO₂)

C₅H₁₂NO₂⁺ +  = (C₅H₁₂NO₂⁺ • )

By formula: C₅H₁₂NO₂⁺ + C₅H₁₁NO₂ = (C₅H₁₂NO₂⁺ • C₅H₁₁NO₂)

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 as indicated in comments:
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

C₅H₁₀NO₂⁺ +  = (C₅H₁₀NO₂⁺ • )

By formula: C₅H₁₀NO₂⁺ + C₅H₁₁NO₂ = (C₅H₁₀NO₂⁺ • C₅H₁₁NO₂)

C₅H₁₂NO₂⁺ +  = (C₅H₁₂NO₂⁺ • )

By formula: C₅H₁₂NO₂⁺ + C₅H₁₁NO₂ = (C₅H₁₂NO₂⁺ • C₅H₁₁NO₂)

 +  = ( • )

By formula: Na⁺ + C₅H₁₁NO₂ = (Na⁺ • C₅H₁₁NO₂)

IR 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: Coblentz Society, Inc.

Condensed Phase Spectrum

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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

Mass spectrum (electron ionization)

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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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

References

Go To: Top, Condensed phase thermochemistry data, Reaction thermochemistry data, Ion clustering data, IR Spectrum, Mass spectrum (electron ionization), Notes

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

Ribeiro da Silva, Ribeiro da Silva, et al., 1992
Ribeiro da Silva, M.A.V.; Ribeiro da Silva, M.D.M.C.; Bernardo, M.M.C.; Santos, L.M.N.B.F., Thermochemistry of some metallic amino acid complexes. Part 1. Copper(II) complexes, Thermochim. Acta, 1992, 205, 99-113. [all data]

Vasil'ev, Borodin, et al., 1991
Vasil'ev, V.P.; Borodin, V.A.; Kopnyshev, S.B., Standard enthalpies of formation of some amino acids, Russ. J. Phys. Chem. (Engl. Transl.), 1991, 65, 1029. [all data]

Wrede, 1911
Wrede, F., Uber die Bestimmung von Berbrennungswarmen mittels der kalorimetrischen Bombe unter Benutzung des Platinwiderstandsthermometers, Z. Phys. Chem. (Leipzig), 1911, 81-94. [all data]

Badelin, Kulikov, et al., 1990
Badelin, V.G.; Kulikov, O.V.; Batagin, V.S.; Udzig, E.; Zielenkiewicz, A.; Zielenkiewicz, W.; Krestov, G.A., Physico-chemical properties of peptides and their solutions, Thermochim. Acta, 1990, 169, 81-93. [all data]

Kulikov, Kozlov, et al., 1989
Kulikov, O.V.; Kozlov, V.A.; Malenkina, L.I.; Badelin, V.G., Heat capacities of amino acids and peptides and excess characteristics ot their aqueous solutions, Sbornik Nauch. Trud., Termodin. Rast. neelect., Ivanovo, Inst. nevod. rast., 1989, Akad. [all data]

Gapeev and Dunbar, 2003
Gapeev, A.; Dunbar, R.C., Na+ Affinities of Gas-Phase Amino Acids by Ligand Exchange Equilibrium, Int. J. Mass Spectrom., 2003, 228, 2-3, 825, https://doi.org/10.1016/S1387-3806(03)00242-2 . [all data]

Kish, Ohanessian, et al., 2003
Kish, M.M.; Ohanessian, G.; Wesdemiotis, C., The Na+ affinities of a-amino acids: side-chain substituent effects, Int. J. Mass Spectrom., 2003, 227, 3, 509, https://doi.org/10.1016/S1387-3806(03)00082-4 . [all data]

Meot-Ner and Field, 1974
Meot-Ner, (Mautner); Field, F.H., Solvation and Association of Protonated Gaseous Amino Acids, J. Am. Chem. Soc., 1974, 96, 10, 3168, https://doi.org/10.1021/ja00817a024 . [all data]

Notes

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• Symbols used in this document:
  

  Cp,solid	Constant pressure heat capacity of solid
  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions
  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
• The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
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