N-Acetyl L-valinamide
- Formula: C7H14N2O2
- Molecular weight: 158.1983
- IUPAC Standard InChI: InChI=1S/C7H14N2O2/c1-4(2)6(7(8)11)9-5(3)10/h4,6H,1-3H3,(H2,8,11)(H,9,10)
- IUPAC Standard InChIKey: WEHJKQHCMGQEEF-UHFFFAOYSA-N
- CAS Registry Number: 37933-88-3
- Chemical structure:
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Phase change 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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tfus | 509.0 | K | N/A | Puliti, Mattia, et al., 1990 | Uncertainty assigned by TRC = 0.4 K; TRC |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔsubH° | 31.81 ± 0.53 | kcal/mol | N/A | Vecchio, Barone, et al., 1999 | AC |
Enthalpy of sublimation
| ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 31.02 ± 0.45 | 376. | C | Vecchio, Barone, et al., 1999 | AC |
| 30.1 ± 0.48 | 418. | N/A | Puliti, Mattia, et al., 1990, 2 | Based on data from 391. to 425. K.; AC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 9.35 | 509. | Santos, Roca, et al., 1997 | AC |
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.
Puliti, Mattia, et al., 1990
Puliti, R.; Mattia, C.A.; Barone, G.; DellaGatta, G.; Ferro, D.,
Crystal structure and thermodynamics of phase transitions of N-acetyl-L-valinamide,
Thermochim. Acta, 1990, 162, 229. [all data]
Vecchio, Barone, et al., 1999
Vecchio, Pompea Del; Barone, Guido; Sabbah, Raphaël; Gatta, Giuseppe Della; Abate, Lorenzo,
Thermodynamics of sublimation ofN-acetyl amides of some amino acids,
The Journal of Chemical Thermodynamics, 1999, 31, 8, 1001-1008, https://doi.org/10.1006/jcht.1999.0504
. [all data]
Puliti, Mattia, et al., 1990, 2
Puliti, R.; Mattia, C.A.; Barone, G.; Della Gatta, G.; Ferro, D.,
Crystal structure and thermodynamics of phase transitions of N-acetyl-l-valinamide,
Thermochimica Acta, 1990, 162, 1, 229-240, https://doi.org/10.1016/0040-6031(90)80345-Y
. [all data]
Santos, Roca, et al., 1997
Santos, Jr; Roca, Sirlei; Airoldi, Claudio,
Thermochemical studies of 2,2,6,6-tetramethyl-3,5-heptanedione chelates of scandium group elements,
The Journal of Chemical Thermodynamics, 1997, 29, 6, 661-668, https://doi.org/10.1006/jcht.1996.0187
. [all data]
Notes
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- Symbols used in this document:
Tfus Fusion (melting) point ΔfusH Enthalpy of fusion ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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