Di-n-propyl ether
- Formula: C6H14O
- Molecular weight: 102.1748
- IUPAC Standard InChIKey: POLCUAVZOMRGSN-UHFFFAOYSA-N
- CAS Registry Number: 111-43-3
- 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: Propane, 1,1'-oxybis-; Propyl ether; Dipropyl ether; Dipropyl oxide; 1,1'-Oxybis[propane]; (n-C3H7)2O; n-Propyl ether; Ether, di-n-propyl-; UN 2384; 4-Oxaheptane
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Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Reaction 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°gas | -70.0 ± 0.5 | kcal/mol | Ccb | Colomina, Pell, et al., 1965 | ALS |
ΔfH°gas | -71.4 | kcal/mol | Ccb | Murrin and Goldhagen, 1957 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°gas | 101.0 | cal/mol*K | N/A | Andon R.J.L., 1975 | GT |
Constant pressure heat capacity of gas
Cp,gas (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
43.726 | 360.00 | Andon R.J.L., 1975 | GT |
45.595 | 380.01 | ||
47.431 | 399.98 | ||
50.170 | 430.05 | ||
52.832 | 460.01 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Reaction 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:
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 | -78.59 ± 0.21 | kcal/mol | Ccb | Colomina, Pell, et al., 1965 | ALS |
ΔfH°liquid | -79.61 ± 0.49 | kcal/mol | Ccb | Murrin and Goldhagen, 1957 | ALS |
Quantity | Value | Units | Method | Reference | Comment |
ΔcH°liquid | -963.93 ± 0.19 | kcal/mol | Ccb | Colomina, Pell, et al., 1965 | Corresponding ΔfHºliquid = -78.58 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
ΔcH°liquid | -962.92 ± 0.49 | kcal/mol | Ccb | Murrin and Goldhagen, 1957 | Corresponding ΔfHºliquid = -79.59 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°liquid | 77.41 | cal/mol*K | N/A | Andon, Counsell, et al., 1975 | DH |
Constant pressure heat capacity of liquid
Cp,liquid (cal/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
52.928 | 298.15 | Kimura, Treszczanowicz, et al., 1983 | DH |
52.96 | 298.15 | Andon, Counsell, et al., 1975 | T = 10 to 330 K.; DH |
Reaction thermochemistry data
Go To: Top, Gas phase thermochemistry data, 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 by: 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
By formula: C6H15O+ + C6H14O = (C6H15O+ • C6H14O)
Bond type: Hydrogen bonds of the type OH-O between organics
Bond type: Hydrogen bonds between protonated and neutral organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 30.9 | kcal/mol | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; switching reaction(C2H5)COH+((C2H5)2CO |
ΔrH° | 29.9 | kcal/mol | ICR | Larson and McMahon, 1982 | gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 40.0 | cal/mol*K | PHPMS | Meot-Ner (Mautner), Sieck, et al., 1994 | gas phase; switching reaction(C2H5)COH+((C2H5)2CO |
ΔrS° | 31.9 | cal/mol*K | N/A | Larson and McMahon, 1982 | gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986 |
Quantity | Value | Units | Method | Reference | Comment |
ΔrG° | 20.4 | kcal/mol | ICR | Larson and McMahon, 1982 | gas phase; switching reaction((CH3)2OH+)(CH3)2O, Entropy change calculated or estimated; Grimsrud and Kebarle, 1973, Lias, Liebman, et al., 1984, Keesee and Castleman, 1986 |
By formula: C5H6N+ + C6H14O = (C5H6N+ • C6H14O)
Bond type: Hydrogen bonds of the type NH+-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 23.5 | kcal/mol | PHPMS | Meot-Ner, 1984 | gas phase; Entropy change calculated or estimated |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 31. | cal/mol*K | N/A | Meot-Ner, 1984 | gas phase; Entropy change calculated or estimated |
Free energy of reaction
ΔrG° (kcal/mol) | T (K) | Method | Reference | Comment |
---|---|---|---|---|
8.0 | 500. | PHPMS | Meot-Ner, 1984 | gas phase; Entropy change calculated or estimated |
By formula: C6H14N+ + C6H14O = (C6H14N+ • C6H14O)
Bond type: Hydrogen bonds of the type NH+-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 25.4 | kcal/mol | PHPMS | Meot-Ner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 31.2 | cal/mol*K | PHPMS | Meot-Ner, 1984 | gas phase |
By formula: CH6N+ + C6H14O = (CH6N+ • C6H14O)
Bond type: Hydrogen bonds of the type NH+-O between organics
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | 24.0 | kcal/mol | PHPMS | Meot-Ner, 1984 | gas phase |
Quantity | Value | Units | Method | Reference | Comment |
ΔrS° | 26.7 | cal/mol*K | PHPMS | Meot-Ner, 1984 | gas phase |
Gas phase ion energetics data
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry 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:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
IE (evaluated) | 9.30 ± 0.03 | eV | N/A | N/A | L |
Quantity | Value | Units | Method | Reference | Comment |
Proton affinity (review) | 200.3 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Quantity | Value | Units | Method | Reference | Comment |
Gas basicity | 193.7 | kcal/mol | N/A | Hunter and Lias, 1998 | HL |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
9.32 ± 0.01 | PE | Cocksey, Eland, et al., 1971 | LLK |
9.27 ± 0.05 | PI | Watanabe, Nakayama, et al., 1962 | RDSH |
9.53 | PE | Aue and Bowers, 1979 | Vertical value; LLK |
9.49 | PE | Benoit and Harrison, 1977 | Vertical value; LLK |
Appearance energy determinations
Ion | AE (eV) | Other Products | Method | Reference | Comment |
---|---|---|---|---|---|
C3H7+ | 11.97 | ? | EI | Williams and Hamill, 1968 | RDSH |
C3H7O+ | 12.9 ± 0.1 | C3H7 | EI | Williams and Hamill, 1968 | RDSH |
References
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Colomina, Pell, et al., 1965
Colomina, M.; Pell, A.S.; Skinner, H.A.; Coleman, D.J.,
Heats of combustion of four dialkylethers,
Trans. Faraday Soc., 1965, 61, 2641. [all data]
Murrin and Goldhagen, 1957
Murrin, J.W.; Goldhagen, S.,
Determination of the C-O bond energy from the heats of combustion of four aliphatic ethers,
NAVORD Report No. 5491, U.S. Naval Powder Factory Res. & Dev. Dept., 1957, 1-14. [all data]
Andon R.J.L., 1975
Andon R.J.L.,
Thermodynamic properties of organic oxygen compounds. 39. Heat capacity of n-propyl ether,
J. Chem. Thermodyn., 1975, 7, 587-592. [all data]
Andon, Counsell, et al., 1975
Andon, R.J.L.; Counsell, J.F.; Lee, D.A.; Martin, J.F.,
Thermodynamic properties of organic oxygen compounds. 39. Heat capacity of n-propyl ether,
J. Chem. Thermodynam., 1975, 7, 587-592. [all data]
Kimura, Treszczanowicz, et al., 1983
Kimura, F.; Treszczanowicz, A.J.; Halpin, C.J.; Benson, G.C.,
Excess volumes and ultrasonic speeds for (di-n-propylether + n-heptane),
J. Chem. Thermodynam., 1983, 15, 503-510. [all data]
Meot-Ner (Mautner), Sieck, et al., 1994
Meot-Ner (Mautner), M.; Sieck, L.W.; Liebman, J.F.; Scheiner, S.; Duan, X.,
The Ionic Hydrogen Bond. 5. Polydentate and Solvent-Bridged Structures. Complexing of the Proton and the Hydronium Ions by Polyethers,
J. Am. Chem. Soc., 1994, 116, 17, 7848, https://doi.org/10.1021/ja00096a047
. [all data]
Larson and McMahon, 1982
Larson, J.W.; McMahon, T.B.,
Formation, Thermochemistry, and Relative Stabilities of Proton - Bound dimers of Oxygen n - Donor Bases from Ion Cyclotron Resonance Solvent - Exchange Equilibria Measurements,
J. Am. Chem. Soc., 1982, 104, 23, 6255, https://doi.org/10.1021/ja00387a016
. [all data]
Grimsrud and Kebarle, 1973
Grimsrud, E.P.; Kebarle, P.,
Gas Phase Ion Equilibria Studies of the Solvation of the Hydrogen Ion by Methanol, Dimethyl Ether and Water. Effect of Hydrogen Bonding,
J. Am. Chem. Soc., 1973, 95, 24, 7939, https://doi.org/10.1021/ja00805a002
. [all data]
Lias, Liebman, et al., 1984
Lias, S.G.; Liebman, J.F.; Levin, R.D.,
Evaluated gas phase basicities and proton affinities of molecules heats of formation of protonated molecules,
J. Phys. Chem. Ref. Data, 1984, 13, 695. [all data]
Keesee and Castleman, 1986
Keesee, R.G.; Castleman, A.W., Jr.,
Thermochemical data on Ggs-phase ion-molecule association and clustering reactions,
J. Phys. Chem. Ref. Data, 1986, 15, 1011. [all data]
Meot-Ner, 1984
Meot-Ner, (Mautner)M.,
The Ionic Hydrogen Bond and Ion Solvation. 1. -NH+ O-, -NH+ N- and -OH+ O- Bonds. Correlations with Proton Affinity. Deviations Due to Structural Effects,
J. Am. Chem. Soc., 1984, 106, 5, 1257, https://doi.org/10.1021/ja00317a015
. [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]
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]
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]
Aue and Bowers, 1979
Aue, D.H.; Bowers, M.T.,
Chapter 9. Stabilities of positive ions from equilibrium gas phase basicity measurements
in Ions Chemistry,, ed. M.T. Bowers, 1979. [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]
Williams and Hamill, 1968
Williams, J.M.; Hamill, W.H.,
Ionization potentials of molecules and free radicals and appearance potentials by electron impact in the mass spectrometer,
J. Chem. Phys., 1968, 49, 4467. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, Gas phase ion energetics data, References
- Symbols used in this document:
AE Appearance energy Cp,gas Constant pressure heat capacity of gas Cp,liquid Constant pressure heat capacity of liquid IE (evaluated) Recommended ionization energy S°gas Entropy of gas at standard conditions S°liquid Entropy of liquid at standard conditions T Temperature ΔcH°liquid Enthalpy of combustion of liquid at standard conditions ΔfH°gas Enthalpy of formation of gas 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 ΔrS° Entropy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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