CH2=N anion
- Formula: CH2N-
- Molecular weight: 28.0338
- CAS Registry Number: 28892-56-0
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Reaction thermochemistry 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 by: John E. Bartmess
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Individual Reactions
CH2N- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 388.3 ± 5.1 | kcal/mol | G+TS | Kass and DePuy, 1985 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 381.0 ± 5.0 | kcal/mol | IMRB | Kass and DePuy, 1985 | gas phase |
Gas phase ion energetics data
Go To: Top, Reaction thermochemistry data, Vibrational and/or electronic energy levels, 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: John E. Bartmess
Protonation reactions
CH2N- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 388.3 ± 5.1 | kcal/mol | G+TS | Kass and DePuy, 1985 | gas phase |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 381.0 ± 5.0 | kcal/mol | IMRB | Kass and DePuy, 1985 | gas phase |
Vibrational and/or electronic energy levels
Go To: Top, 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 by: Marilyn E. Jacox
State: ?
| Energy (cm-1) |
Med. | Transition | λmin (nm) |
λmax (nm) |
References | ||
|---|---|---|---|---|---|---|---|
| Td = 4120 ± 65 | gas | Cowles, Travers, et al., 1991 | |||||
State: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| a1 | 3 | CH2 scissors | 1400 | T | gas | PE | Cowles, Travers, et al., 1991 |
Additional references: Jacox, 1994, page 143
Notes
| T | Tentative assignment or approximate value |
| d | Photodissociation threshold |
References
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kass and DePuy, 1985
Kass, S.R.; DePuy, C.H.,
Gas phase ion chemistry of azides. The generation of CH=N- and CH2=NCH2-,
J. Org. Chem., 1985, 50, 2874. [all data]
Cowles, Travers, et al., 1991
Cowles, D.C.; Travers, M.J.; Frueh, J.L.; Ellison, G.B.,
Photoelectron Spectroscopy of CH2N-,
J. Chem. Phys., 1991, 94, 5, 3517, https://doi.org/10.1063/1.459773
. [all data]
Jacox, 1994
Jacox, M.E.,
Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]
Notes
Go To: Top, Reaction thermochemistry data, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
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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