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DL-Valine


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

Quantity Value Units Method Reference Comment
Deltafsolid-617.0 ± 1.0kJ/molCcbRibeiro da Silva, Ribeiro da Silva, et al., 1992ALS
Quantity Value Units Method Reference Comment
Deltacsolid-2910.7 ± 1.9kJ/molCcbVasil'ev, Borodin, et al., 1991ALS
Deltacsolid-2933.9 ± 0.4kJ/molCcbWrede, 1911ALS

Constant pressure heat capacity of solid

Cp,solid (J/mol*K) Temperature (K) Reference Comment
165.298.Badelin, Kulikov, et al., 1990T = 298, 313, 333, 348 K.; DH
164.5298.Kulikov, Kozlov, et al., 1989T = 298 to 348 K.; DH

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

Sodium ion (1+) + DL-Valine = (Sodium ion (1+) bullet DL-Valine)

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

Quantity Value Units Method Reference Comment
Deltar173. ± 13.kJ/molIMREGapeev and Dunbar, 2003Anchor glycine=38.5+-2.1; RCD
Deltar173.kJ/molCIDCKish, Ohanessian, et al., 2003Anchor alanine=39.89; RCD

C5H10NO2+ + DL-Valine = (C5H10NO2+ bullet DL-Valine)

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

Quantity Value Units Method Reference Comment
Deltar87.9kJ/molPHPMSMeot-Ner and Field, 1974gas phase; M

C5H12NO2+ + DL-Valine = (C5H12NO2+ bullet DL-Valine)

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

Quantity Value Units Method Reference Comment
Deltar86.6kJ/molPHPMSMeot-Ner and Field, 1974gas phase; M

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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IR 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

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Owner COBLENTZ SOC.
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin DOW CHEMICAL COMPANY
Source reference COBLENTZ NO. 05783
Date 1963/11/27
Name(s) 2-AMINOISOVALERIC ACID
State SOLID (SPLIT MULL)
Instrument DOW KBr FOREPRISM-GRATING
Instrument parameters BLAZED AT 3.5, 12.0, 20.0 MICRON AND CHANGED AT 5.0, 7.5, 14.9 MICRON
Resolution 2
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY COBLENTZ SOCIETY (BATCH I) FROM HARD COPY
Melting point 315 C

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


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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Mass spectrum
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Additional Data

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Owner NIST Mass Spectrometry Data Center
Collection (C) 2014 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin Japan AIST/NIMC Database- Spectrum MS-NW- 245
NIST MS number 228126

All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.


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.

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

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