Propanal
- Formula: C3H6O
- Molecular weight: 58.0791
- IUPAC Standard InChIKey: NBBJYMSMWIIQGU-UHFFFAOYSA-N
- CAS Registry Number: 123-38-6
- 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: Propionaldehyde; Methylacetaldehyde; Propaldehyde; Propional; Propionic aldehyde; Propylaldehyde; Propylic aldehyde; C2H5CHO; n-Propionaldehyde; Propanalaldehyde; n-Propanal; Aldehyde propionique; Propanaldehyde; NCI-C61029; UN 1275; 1-Propanone; 1-Propanal; Proprionaldehyde; NSC 6493
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Condensed phase thermochemistry data
Go To: Top, Gas phase ion energetics data, Ion clustering data, 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:
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 |
---|---|---|---|---|---|
ΔfH°liquid | -218.3 ± 0.63 | kJ/mol | Cm | Wiberg, Crocker, et al., 1991 | Heat of hydrogenation; ALS |
ΔfH°liquid | -215.7 ± 1.5 | kJ/mol | Eqk | Connett, 1972 | At 473-524 K; ALS |
ΔfH°liquid | -220.2 ± 0.96 | kJ/mol | Chyd | Buckley and Cox, 1967 | ALS |
ΔfH°liquid | -221.5 ± 0.75 | kJ/mol | Ccb | Tjebbes, 1962 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -1816.5 ± 0.75 | kJ/mol | Ccb | Tjebbes, 1962 | Corresponding ΔfHºliquid = -221.5 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 212.9 | J/mol*K | N/A | Korkhov and Vasil'ev, 1977 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
159.1 | 298.15 | Korkhov and Vasil'ev, 1977 | T = 15 to 335 K.; DH |
134.7 | 298. | von Reis, 1881 | T = 288 to 328 K.; DH |
Gas phase ion energetics data
Go To: Top, Condensed phase thermochemistry data, Ion clustering data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
L - Sharon G. Lias
Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
View reactions leading to C3H6O+ (ion structure unspecified)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.96 ± 0.01 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 786.0 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 754.0 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Electron affinity determinations
EA (eV) | Reference | Comment |
---|---|---|
0.000999 ± 0.000087 | Hammer, Diri, et al., 2003 | B |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.96 | PI | Traeger, 1985 | LBLHLM |
9.96 | PI | Traeger, 1985, 2 | LBLHLM |
9.82 ± 0.14 | EI | El-Sherbini, Allam, et al., 1981 | LLK |
9.95 | PI | Staley, Wieting, et al., 1977 | LLK |
9.953 ± 0.005 | PE | Hernandez, Masclet, et al., 1977 | LLK |
9.99 | PE | Tam, Yee, et al., 1974 | LLK |
9.97 ± 0.01 | PE | Cocksey, Eland, et al., 1971 | LLK |
9.94 | PE | Dewar and Worley, 1969 | RDSH |
9.98 ± 0.01 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
9.96 | PE | Benoit and Harrison, 1977 | Vertical value; LLK |
9.85 | PE | Kimura, Katsumata, et al., 1975 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
CHO+ | 11.79 | C2H5 | PI | Traeger, 1985 | LBLHLM |
C2H3O+ | 12.3 ± 0.05 | CH3 | EI | Burgers and Holmes, 1982 | LBLHLM |
C2H3O+ | 10.79 | CH3 | PI | Staley, Wieting, et al., 1977 | LLK |
C3H5O+ | 10.18 | H | PI | Traeger, 1985, 2 | LBLHLM |
De-protonation reactions
C3H5O- + =
By formula: C3H5O- + H+ = C3H6O
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 1528. ± 8.8 | kJ/mol | G+TS | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrH° | 1531. ± 10. | kJ/mol | G+TS | Cumming and Kebarle, 1978 | gas phase; B |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 1501. ± 8.4 | kJ/mol | IMRE | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
ΔrG° | 1504. ± 8.4 | kJ/mol | IMRE | Cumming and Kebarle, 1978 | gas phase; B |
Ion clustering data
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, 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:
B - John E. Bartmess
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. Searches may be limited to ion clustering reactions. A general reaction search form is also available.
Clustering reactions
(C3H7O- • 4294967295) + = C3H7O-
By formula: (C3H7O- • 4294967295C3H6O) + C3H6O = C3H7O-
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 172. ± 9.2 | kJ/mol | N/A | Bartmess, Scott, et al., 1979 | gas phase; value altered from reference due to change in acidity scale; B |
By formula: Mg+ + C3H6O = (Mg+ • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 270. ± 20. | kJ/mol | ICR | Operti, Tews, et al., 1988 | gas phase; switching reaction,Thermochemical ladder(Mg+)CH3OH; M |
By formula: NO- + C3H6O = (NO- • C3H6O)
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 159. | kJ/mol | ICR | Reents and Freiser, 1981 | gas phase; switching reaction,Thermochemical ladder(NO+)C2H5OH, Entropy change calculated or estimated; Farid and McMahon, 1978, ref. to PA(NH3)=872. kJ/mol; M |
References
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wiberg, Crocker, et al., 1991
Wiberg, K.B.; Crocker, L.S.; Morgan, K.M.,
Thermochemical studies of carbonyl compounds. 5. Enthalpies of reduction of carbonyl groups,
J. Am. Chem. Soc., 1991, 113, 3447-3450. [all data]
Connett, 1972
Connett, J.E.,
Chemical equilibria. 5. Measurement of equilibrium constants for the dehydrogenation of propanol by a vapour flow technique,
J. Chem. Thermodyn., 1972, 4, 233-237. [all data]
Buckley and Cox, 1967
Buckley, E.; Cox, J.D.,
Chemical equilibria. Part 2.-Dehydrogenation of propanol and butanol,
Trans. Faraday Soc., 1967, 63, 895-901. [all data]
Tjebbes, 1962
Tjebbes, J.,
Heats of combustion of propanal and 2-methyl propanal,
Acta Chem. Scand., 1962, 16, 953-857. [all data]
Korkhov and Vasil'ev, 1977
Korkhov, A.D.; Vasil'ev, I.A.,
Heat capacity and thermodynamic functions of propanal at low temperatures,
Termodin. Org. Soedin., 1977, (6), 34-37. [all data]
von Reis, 1881
von Reis, M.A.,
Die specifische Wärme flüssiger organischer Verbindungen und ihre Beziehung zu deren Moleculargewicht,
Ann. Physik [3], 1881, 13, 447-464. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Hammer, Diri, et al., 2003
Hammer, N.I.; Diri, K.; Jordan, K.D.; Desfrancois, C.; Compton, R.N.,
Dipole-bound anions of carbonyl, nitrile, and sulfoxide containing molecules,
J. Chem. Phys., 2003, 119, 7, 3650-3660, https://doi.org/10.1063/1.1590959
. [all data]
Traeger, 1985
Traeger, J.C.,
Heat of formation for the formyl cation by photoionization mass spectrometry,
Int. J. Mass Spectrom. Ion Processes, 1985, 66, 271. [all data]
Traeger, 1985, 2
Traeger, J.C.,
Heat of formation for the propanoyl cation by photoionization mass spectrometry,
Org. Mass Spectrom., 1985, 20, 223. [all data]
El-Sherbini, Allam, et al., 1981
El-Sherbini, T.M.; Allam, S.H.; Migahed, M.D.; Dawoud, A.M.,
Mass spectrometric investigation of aliphatic aldehydes,
Z. Naturforsch. A:, 1981, 36, 1334. [all data]
Staley, Wieting, et al., 1977
Staley, R.H.; Wieting, R.D.; Beauchamp, J.L.,
Carbenium ion stabilities in the gas phase and solution. An ion cyclotron resonance study of bromide transfer reactions involving alkali ions, alkyl carbenium ions, acyl cations and cyclic halonium ions,
J. Am. Chem. Soc., 1977, 99, 5964. [all data]
Hernandez, Masclet, et al., 1977
Hernandez, R.; Masclet, P.; Mouvier, G.,
Spectroscopie de photoelectrons d'aldehydes et de cetones aliphatiques,
J. Electron Spectrosc. Relat. Phenom., 1977, 10, 333. [all data]
Tam, Yee, et al., 1974
Tam, W.-C.; Yee, D.; Brion, C.E.,
Photoelectron spectra of some aldehydes and ketones,
J. Electron Spectrosc. Relat. Phenom., 1974, 4, 77. [all data]
Cocksey, Eland, et al., 1971
Cocksey, B.J.; Eland, J.H.D.; Danby, C.J.,
The effect of alkyl substitution on ionisation potential,
J. Chem. Soc., 1971, (B), 790. [all data]
Dewar and Worley, 1969
Dewar, M.J.S.; Worley, S.D.,
Photoelectron spectra of molecules. I. Ionization potentials of some organic molecules and their interpretation,
J. Chem. Phys., 1969, 50, 654. [all data]
Watanabe, Nakayama, et al., 1962
Watanabe, K.; Nakayama, T.; Mottl, J.,
Ionization potentials of some molecules,
J. Quant. Spectry. Radiative Transfer, 1962, 2, 369. [all data]
Benoit and Harrison, 1977
Benoit, F.M.; Harrison, A.G.,
Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules,
J. Am. Chem. Soc., 1977, 99, 3980. [all data]
Kimura, Katsumata, et al., 1975
Kimura, K.; Katsumata, S.; Yamazaki, T.; Wakabayashi, H.,
UV photoelectron spectra and sum rule consideration; out-of-plane orbitals of unsaturated compounds with planar-skeleton structure,
J. Electron Spectrosc. Relat. Phenom., 1975, 6, 41. [all data]
Burgers and Holmes, 1982
Burgers, P.C.; Holmes, J.L.,
Metastable ion studies. XIII. The measurement of appearance energies of metastable peaks,
Org. Mass Spectrom., 1982, 17, 123. [all data]
Bartmess, Scott, et al., 1979
Bartmess, J.E.; Scott, J.A.; McIver, R.T., Jr.,
The gas phase acidity scale from methanol to phenol,
J. Am. Chem. Soc., 1979, 101, 6047. [all data]
Cumming and Kebarle, 1978
Cumming, J.B.; Kebarle, P.,
Summary of gas phase measurements involving acids AH. Entropy changes in proton transfer reactions involving negative ions. Bond dissociation energies D(A-H) and electron affinities EA(A),
Can. J. Chem., 1978, 56, 1. [all data]
Operti, Tews, et al., 1988
Operti, L.; Tews, E.C.; Freiser, B.S.,
Determination of Gas-Phase Ligand Binding Energies to Mg+ by FTMS Techniques,
J. Am. Chem. Soc., 1988, 110, 12, 3847, https://doi.org/10.1021/ja00220a020
. [all data]
Reents and Freiser, 1981
Reents, W.D.; Freiser, B.S.,
Gas-Phase Binding Energies and Spectroscopic Properties of NO+ Charge-Transfer Complexes,
J. Am. Chem. Soc., 1981, 103, 2791. [all data]
Farid and McMahon, 1978
Farid, R.; McMahon, T.B.,
Gas-Phase Ion-Molecule Reactions of Alkyl Nitrites by Ion Cyclotron Resonance Spectroscopy,
Int. J. Mass Spectrom. Ion Phys., 1978, 27, 2, 163, https://doi.org/10.1016/0020-7381(78)80037-0
. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, References
- Symbols used in this document:
AE Appearance energy Cp,liquid Constant pressure heat capacity of liquid EA Electron affinity IE (evaluated) Recommended ionization energy S°liquid Entropy of liquid at standard conditions ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions 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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