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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -17.0 ± 0.59 | kJ/mol | Ccr | Good and Moore, 1970 |
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
Data compiled as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Proton affinity (review) | 951.6 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
| Quantity | Value | Units | Method | Reference | Comment |
| Gas basicity | 912.5 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
| Proton affinity (kJ/mol) | Reference | Comment |
|---|---|---|
| 951. ± 4. | Hahn and Wesdemiotis, 2003 | MM |
| 941.8 | Wang, Chu, et al., 1999 | KM results obtained from CID of complexes with secondary amines at E(cm) = 0 eV, extrapolated from CID at E(cm) = 0.8, 1.5, 2.0 eV; MM |
| 948.1 | Wang, Chu, et al., 1999 | KM results obtained from CID of complexes with secondary amines using Fenselau/Wesdemiotis correction; MM |
| IE (eV) | Method | Reference | Comment |
|---|---|---|---|
| 8.6 | PE | Kimura, Katsumata, et al., 1981 | LLK |
| 9.25 | PE | Kimura, Katsumata, et al., 1981 | LLK |
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| CH4N + | 9.56 | CH2NH2 | EI | Burkey, Castelhano, et al., 1983 | LBLHLM |
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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.
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 73.2 | kJ/mol | HPMS | Wincel and Herman, 1973 | gas phase; Entropy change is questionable |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 199. | J/mol*K | HPMS | Wincel and Herman, 1973 | gas phase; Entropy change is questionable |
Bond type: Polydentate bonding in non-hydrogen-bonded positive ions
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 108. | kJ/mol | HPMS | Davidson and Kebarle, 1976 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 93.3 | J/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase |
Bond type: Polydentate bonding in non-hydrogen-bonded positive ions
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 92.9 | kJ/mol | HPMS | Davidson and Kebarle, 1976 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 134. | J/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase |
Bond type: Polydentate bonding in non-hydrogen-bonded positive ions
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 54.0 | kJ/mol | HPMS | Davidson and Kebarle, 1976 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrS° | 110. | J/mol*K | HPMS | Davidson and Kebarle, 1976 | gas phase |
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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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 | NIST Mass Spectrometry Data Center, 1998. |
| NIST MS number | 291549 |
All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the library and its accompanying search program.
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Good and Moore, 1970
Good, W.D.; Moore, R.T., Enthalpies of formation of ethylenediamine, 1,2,-propanediamine, 1,2,-butanediamine, 2-methyl-1,2-propanediamine, and isobutylamine C-N and N-F Thermochemical bond energies, J. Chem. Eng. Data, 1970, 15, 150-154. [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]
Hahn and Wesdemiotis, 2003
Hahn, I.S.; Wesdemiotis, C., Protonation Thermochemistry of beta-Alanine. An Evaluation of Proton Affinities and Entropies Determined by the Extended Kinetic Method, Int. J. Mass Spectrometry, 2003, 222, 465. [all data]
Wang, Chu, et al., 1999
Wang, Z.; Chu, I.K.; Rodriquez, C.F.; Hopkinson, A.C.; Siu, K.W.M., α,ω-Diaminoalkanes as models for bases that dicoordinate the proton: An evaluation of the kinetic method for estimating their proton affinities, J. Phys. Chem. A., 1999, 103, 8700. [all data]
Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]
Burkey, Castelhano, et al., 1983
Burkey, T.J.; Castelhano, A.L.; Griller, D.; Lossing, F.P., Heats of formation and ionization potentials of some α-aminoalkyl radicals, J. Am. Chem. Soc., 1983, 105, 4701. [all data]
Wincel and Herman, 1973
Wincel, H.; Herman, J.A., Photoionization Study of Clustering Reactions in Diamines: Ethane-1,2-diamine, Propane-1,2-diamine and Propane-1,3-diamine, J. Chem. Soc. Faraday Trans., 1973, 69, 1797, https://doi.org/10.1039/f19736901797 . [all data]
Davidson and Kebarle, 1976
Davidson, W.R.; Kebarle, P., Binding Energies and Stabilities of Potassium Ion Complexes with Ethylene Diamine and Dimethoxyethane (Glyme) from Measurements of the Complexing Equilibria in the Gas Phase, Can. J. Chem., 1976, 54, 16, 2594, https://doi.org/10.1139/v76-368 . [all data]
| AE | Appearance energy |
| ΔfH°gas | Enthalpy of formation of gas at standard conditions |
| ΔrH° | Enthalpy of reaction at standard conditions |
| ΔrS° | Entropy of reaction at standard conditions |
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