Bicyclo[1.1.1]pentane
- Formula: C5H8
- Molecular weight: 68.1170
- IUPAC Standard InChI: InChI=1S/C5H8/c1-4-2-5(1)3-4/h4-5H,1-3H2
- IUPAC Standard InChIKey: MKCBRYIXFFGIKN-UHFFFAOYSA-N
- CAS Registry Number: 311-75-1
- Chemical structure:
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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
C5H7- + =
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | 1720. ± 15. | kJ/mol | CIDT | Graul and Squires, 1990 | gas phase; Reed, Kass, et al., 2002 claim this is the 1,4-pentadien-2-ide anion |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔrG° | 1684. ± 15. | kJ/mol | H-TS | Graul and Squires, 1990 | gas phase; Reed, Kass, et al., 2002 claim this is the 1,4-pentadien-2-ide anion |
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.
Graul and Squires, 1990
Graul, S.T.; Squires, R.R.,
Gas-Phase Acidities Derived from Threshold Energies for Activated Reactions,
J. Am. Chem. Soc., 1990, 112, 7, 2517, https://doi.org/10.1021/ja00163a007
. [all data]
Reed, Kass, et al., 2002
Reed, D.R.; Kass, S.R.; Mondanaro, K.R.; Dailey, W.P.,
Formation of a 1-bicyclo[1.1.1]pentyl anion and an experimental determination of the acidity and C-H bond dissociation energy of 3-tert-butylbicyclo[1.1.1]pentane,
J. Am. Chem. Soc., 2002, 124, 11, 2790-2795, https://doi.org/10.1021/ja0121890
. [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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