HNCN anion
- Formula: CHN2-
- Molecular weight: 41.0326
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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
CHN2- + =
By formula: CHN2- + H+ = CH2N2
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 350.7 ± 2.3 | kcal/mol | G+TS | Koppel, Taft, et al., 1994 | gas phase; DH: 99±3, 97BOR/JI 2 |
| ΔrH° | 349.2 ± 2.8 | kcal/mol | G+TS | Cacace, Depetris, et al., 1993 | gas phase |
| ΔrH° | 351.9 ± 3.2 | kcal/mol | G+TS | Kroeker and Kass, 1990 | gas phase; Between tBuSH, HOAc |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 344.1 ± 2.0 | kcal/mol | IMRE | Koppel, Taft, et al., 1994 | gas phase; DH: 99±3, 97BOR/JI 2 |
| ΔrG° | 342.6 ± 2.5 | kcal/mol | IMRE | Cacace, Depetris, et al., 1993 | gas phase |
| ΔrG° | 345.3 ± 3.0 | kcal/mol | IMRB | Kroeker and Kass, 1990 | gas phase; Between tBuSH, HOAc |
References
Go To: Top, Reaction thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Koppel, Taft, et al., 1994
Koppel, I.A.; Taft, R.W.; Anvia, F.; Zhu, S.Z.; Hu, L.Q.; Sung, K.S.; Desmarteau, D.D.; Yagupolskii, L.M.,
The Gas-Phase Acidities of Very Strong Neutral Bronsted Acids,
J. Am. Chem. Soc., 1994, 116, 7, 3047, https://doi.org/10.1021/ja00086a038
. [all data]
Cacace, Depetris, et al., 1993
Cacace, F.; Depetris, G.; Grandinetti, F.; Occhiucci, G.,
Gas-Phase Ion Chemistry of Cyanamide - A Mass Spectrometric and Abinitio Study of Gaseous [H2N-CN]+, [H2N-CN]H+, and [HN-CN]- Ions,
J. Phys. Chem., 1993, 97, 16, 4239, https://doi.org/10.1021/j100118a048
. [all data]
Kroeker and Kass, 1990
Kroeker, R.L.; Kass, S.R.,
Diazirinyl Anion: A Cyclic 4-pi Electron System,
J. Am. Chem. Soc., 1990, 112, 24, 9024, https://doi.org/10.1021/ja00180a082
. [all data]
Notes
Go To: Top, Reaction thermochemistry data, 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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