Pentanamide
- Formula: C5H11NO
- Molecular weight: 101.1469
- IUPAC Standard InChIKey: IPWFJLQDVFKJDU-UHFFFAOYSA-N
- CAS Registry Number: 626-97-1
- 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. - Other names: Valeramide; n-Valeramide; Pentanimidic acid
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Condensed phase thermochemistry data
Go To: Top, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
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
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔcH°solid | -755.28 ± 0.25 | kcal/mol | Ccb | Young, Keith, et al., 1956 | Reanalyzed by Cox and Pilcher, 1970, Original value = -754.56 ± 0.25 kcal/mol; see Dzombak, 1956 |
Phase change data
Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
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
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 379.0 | K | N/A | Davies, Jones, et al., 1959 | Uncertainty assigned by TRC = 0.6 K; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 21.3 ± 0.1 | kcal/mol | V | Davies, Jones, et al., 1959 | ALS |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
21.3 | 353. to 373. | N/A | Jones, 1960 | AC |
21.3 ± 0.1 | 333. to 374. | GS | Davies, Jones, et al., 1959 | See also Cox and Pilcher, 1970, 2.; AC |
Enthalpy of fusion
ΔfusH (kcal/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
4.28 | 377.2 | Abate, Badea, et al., 2008 | AC |
IR Spectrum
Go To: Top, Condensed phase thermochemistry data, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, References, Notes
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
Gas Phase Spectrum
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Additional Data
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Owner | NIST Standard Reference Data Program Collection (C) 2018 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Sadtler Research Labs Under US-EPA Contract |
State | gas |
Mass spectrum (electron ionization)
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Gas Chromatography, References, Notes
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
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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-1271 |
NIST MS number | 230762 |
Gas Chromatography
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), References, Notes
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
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | ZB-1 MS | 918. | Bajpai, Al-Reza, et al., 2009 | 30. m/0.25 mm/0.25 μm, Helium; Program: 50 0C 3 0C/min -> 150 0C (10 min) 10 0C/min -> 250 0C |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Stabilwax DA | 2006. | Henderson and Henderson, 1992 | 15. m/0.25 mm/0.25 μm, He; Program: not specified |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Young, Keith, et al., 1956
Young, J.A.; Keith, J.E.; Stehle, P.; Dzombak, W.C.; Hunt, H.,
Heats of combustion of some organic nitrogen compounds,
Ind. Eng. Chem., 1956, 48, 1375-1378. [all data]
Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]
Dzombak, 1956
Dzombak, W.C.,
The heats of combustion of some amides and amines, Dissertation Abstr,, 1956, 22-23. [all data]
Davies, Jones, et al., 1959
Davies, M.; Jones, A.H.; Thomas, G.H.,
The lattice energies of the straight-chain primary amides,
Trans. Faraday Soc., 1959, 55, 1100. [all data]
Jones, 1960
Jones, A.H.,
Sublimation Pressure Data for Organic Compounds.,
J. Chem. Eng. Data, 1960, 5, 2, 196-200, https://doi.org/10.1021/je60006a019
. [all data]
Cox and Pilcher, 1970, 2
Cox, J.D.; Pilcher, G.,
Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [all data]
Abate, Badea, et al., 2008
Abate, Lorenzo; Badea, Elena; Blanco, Ignazio; Della Gatta, Giuseppe,
Heat Capacities and Enthalpies of Solid-Solid Transitions and Fusion of a Series of Eleven Primary Alkylamides by Differential Scanning Calorimetry,
J. Chem. Eng. Data, 2008, 53, 4, 959-965, https://doi.org/10.1021/je700662a
. [all data]
Bajpai, Al-Reza, et al., 2009
Bajpai, V.K.; Al-Reza, S.M.; Choi, U.L.; Lee, J.H.; Kang, S.C.,
Chemical composition, antibacterial and antioxidant activities of leaf essential oil and extracts of Metasequioa glyptostroboides Miki ex Hu,
Food Chem. Toxicol., 2009, 47, 8, 1876-1883, https://doi.org/10.1016/j.fct.2009.04.043
. [all data]
Henderson and Henderson, 1992
Henderson, D.E.; Henderson, S.K.,
Thermal decomposition of capsaicin. 1. Interactions with oleic acid at high temperatures,
J. Agric. Food Chem., 1992, 40, 11, 2263-2268, https://doi.org/10.1021/jf00023a042
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
Tfus Fusion (melting) point ΔcH°solid Enthalpy of combustion of solid at standard conditions 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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