Isodiazene
- Formula: H2N2
- Molecular weight: 30.0293
- CAS Registry Number: 28647-38-3
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Gas phase ion energetics 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: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
View reactions leading to H2N2+ (ion structure unspecified)
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| HN2+ | 10.77 ± 0.05 | H | EI | Wiberg, Fischer, et al., 1979 | |
| H2N2+ | 9.52 ± 0.05 | ? | EI | Wiberg, Fischer, et al., 1979 | |
| N2+ | 13.70 ± 0.05 | H2 | EI | Wiberg, Fischer, et al., 1979 |
Vibrational and/or electronic energy levels
Go To: Top, 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: X
| Vib. sym. |
No. | Approximate type of mode |
cm-1 | Med. | Method | References | |
|---|---|---|---|---|---|---|---|
| a1 | 1 | NH stretch | 2862.0 | s | Ar | IR | Sylwester and Dervan, 1984 Teles, Maier, et al., 1989 |
| 2 | NH2 scissors | 1644.7 | w | Ar | IR | Teles, Maier, et al., 1989 | |
| 3 | N=N stretch | 1574.2 | m | Ar | IR | Sylwester and Dervan, 1984 Teles, Maier, et al., 1989 | |
| b1 | 4 | OPLA | 1002.7 | vs | Ar | IR | Sylwester and Dervan, 1984 Teles, Maier, et al., 1989 |
| b2 | 5 | NH stretch | 2804.6 | m | Ar | IR | Sylwester and Dervan, 1984 Teles, Maier, et al., 1989 |
| 6 | NH2 rock | 1287.5 | w | Ar | IR | Teles, Maier, et al., 1989 | |
Additional references: Jacox, 1994, page 148
Notes
| w | Weak |
| m | Medium |
| s | Strong |
| vs | Very strong |
References
Go To: Top, 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.
Wiberg, Fischer, et al., 1979
Wiberg, N.; Fischer, G.; Bachhuber, H.,
Diazen und andere Distickstoffhydride: Bildungswarmen, Dissoziationsenergien, Auftrittspotentiale, Protonenaffinitaten,
Z. Naturforsch. B:, 1979, 34, 1385. [all data]
Sylwester and Dervan, 1984
Sylwester, A.P.; Dervan, P.B.,
Low-temperature matrix isolation of the 1,1-diazene H2NN. Electronic and infrared characterization,
J. Am. Chem. Soc., 1984, 106, 16, 4648, https://doi.org/10.1021/ja00328a076
. [all data]
Teles, Maier, et al., 1989
Teles, J.H.; Maier, G.; Hess, B.A., Jr.; Schaad, L.J.,
Infrared Spectra and Photochemistry of Isodiazene and Its Deuterated Isotopomers,
Chem. Ber., 1989, 122, 4, 749, https://doi.org/10.1002/cber.19891220424
. [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, Gas phase ion energetics data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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