N-Glycylglycine
- Formula: C4H8N2O3
- Molecular weight: 132.1179
- IUPAC Standard InChIKey: YMAWOPBAYDPSLA-UHFFFAOYSA-N
- CAS Registry Number: 556-50-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Glycine, N-glycyl-; Diglycine; Glycylglycine; Glycine dipeptide
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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
B - John E. Bartmess
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+ + C4H8N2O3 = (Na+ • C4H8N2O3)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 42.3 ± 1.7 | kcal/mol | CIDC | Cerda, Hoyau, et al., 1998 | See amide; RCD |
ΔrH° | 42.9 | kcal/mol | CIDT | Klassen, Anderson, et al., 1996 | RCD |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
34.2 | 0. | CIDC | Feng, Gronert, et al., 1999 | RCD |
CAS Reg. No. 23372-53-4 + = C8H15N4O6-
By formula: CAS Reg. No. 23372-53-4 + C4H8N2O3 = C8H15N4O6-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 7.50 ± 0.30 | kcal/mol | TDEq | Liu, Wyttenbacj, et al., 2004 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 3.12 | kcal/mol | TDEq | Liu, Wyttenbacj, et al., 2004 | gas phase; B |
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.
Cerda, Hoyau, et al., 1998
Cerda, B.A.; Hoyau, S.; Ohanessian, G.; Wesdemiotis, C.,
PAs of Peptides,
J. Am. Chem. Soc., 1998, 120, 2437. [all data]
Klassen, Anderson, et al., 1996
Klassen, J.S.; Anderson, S.G.; Blades, A.T.; Kebarle, P.,
Reaction Enthalpies for M+L = M+ + L, Where M+ = Na+ and K+ and L = Acetamide, N-Methylacetamide, N,N-Dimethylacetamide, Glycine, and Glycylglycine, from Determinations of the Collision-Induced Dissociation Thresholds,
J. Phys. Chem., 1996, 100, 33, 14218, https://doi.org/10.1021/jp9608382
. [all data]
Feng, Gronert, et al., 1999
Feng, W.Y.; Gronert, S.; Lebrilla, C.B.,
Lithium and sodium ion binding energies of N-acetyl and N-glycyl amino acids,
J. Am. Chem. Soc., 1999, 121, 6, 1365, https://doi.org/10.1021/ja983116s
. [all data]
Liu, Wyttenbacj, et al., 2004
Liu, D.; Wyttenbacj, T.; Carpenter, C.J.; Bowers, M.T.,
Investigation of Non-Covalent Interactions in Deprotonated Peptides: Structural and Energetic Competition between Aggregation and Hydration,
J. Am. Chem. Soc., 2004, 126, 10, 3261, https://doi.org/10.1021/ja0393628
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
T Temperature ΔrG° Free energy of reaction at standard conditions ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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