CH2=CHCH2CH2 anion

Gas phase ion energetics data

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Data compiled by: John E. Bartmess

C₄H₇^- + =

By formula: C₄H₇^- + H⁺ = C₄H₈

Quantity	Value	Units	Method	Reference	Comment
Δ_rH°	412.0 ± 2.0	kcal/mol	Bran	DePuy, Gronert, et al., 1989	gas phase
Δ_rH°	413.2 ± 4.8	kcal/mol	Bran	Peerboom, Rademaker, et al., 1992	gas phase
Quantity	Value	Units	Method	Reference	Comment
Δ_rG°	404.0 ± 2.1	kcal/mol	H-TS	DePuy, Gronert, et al., 1989	gas phase
Δ_rG°	405.2 ± 4.9	kcal/mol	H-TS	Peerboom, Rademaker, et al., 1992	gas phase

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DePuy, Gronert, et al., 1989
DePuy, C.H.; Gronert, S.; Barlow, S.E.; Bierbaum, V.M.; Damrauer, R., The Gas Phase Acidities of the Alkanes, J. Am. Chem. Soc., 1989, 111, 6, 1968, https://doi.org/10.1021/ja00188a003 . [all data]

Peerboom, Rademaker, et al., 1992
Peerboom, R.A.L.; Rademaker, G.J.; Dekoning, L.J.; Nibbering, N.M.M., Stabilization of Cycloalkyl Carbanions in the Gas Phase, Rapid Commun. Mass Spectrom., 1992, 6, 6, 394, https://doi.org/10.1002/rcm.1290060608 . [all data]

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Symbols used in this document:

Δ_rG° Free energy of reaction at standard conditions

Δ_rH° Enthalpy of reaction at standard conditions
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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Δ_rG°	Free energy of reaction at standard conditions
Δ_rH°	Enthalpy of reaction at standard conditions