HCðCCðCCðC anion
- Formula: C6H-
- Molecular weight: 73.0727
- Information on this page:
- Other data available:
- Options:
Reaction thermochemistry data
Go To: Top, 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
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
C6H- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 358.8 ± 5.0 | kcal/mol | D-EA | Garand, Yacovitch, et al., 2010 | gas phase; Calns says linear H-terminated structure for anion |
| ΔrH° | 355.2 ± 3.1 | kcal/mol | G+TS | Natterer, Koch, et al., 1994 | gas phase; Acidity between (Me3Si)2NH and 4-Me-pyrazole |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 350.6 ± 5.1 | kcal/mol | H-TS | Garand, Yacovitch, et al., 2010 | gas phase; Calns says linear H-terminated structure for anion |
| ΔrG° | 347.0 ± 3.0 | kcal/mol | IMRB | Natterer, Koch, et al., 1994 | gas phase; Acidity between (Me3Si)2NH and 4-Me-pyrazole |
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.
Garand, Yacovitch, et al., 2010
Garand, E.; Yacovitch, T.I.; Zhou, J.; Sheehan, S.M.; Neumark, D.M.,
Slow photoelectron velocity-map imaging of the CnH- (n=5-9) anions,
Chem. Sci., 2010, 1, 2, 192-201, https://doi.org/10.1039/c0sc00164c
. [all data]
Natterer, Koch, et al., 1994
Natterer, J.; Koch, W.; Schroder, D.; Goldberg, N.; Schwarz, H.,
Combined experimental and theoretical study of the C-H bond strength and the gas phase acidity of triacetylene, C6H2, and the electron affinity of the C6H. radical,
Chem. Phys. Lett., 1994, 229, 4-5, 429, https://doi.org/10.1016/0009-2614(94)01075-7
. [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
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.