methylmagnesium bromide
- Formula: CH3BrMg
- Molecular weight: 119.244
- CAS Registry Number: 75-16-1
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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: José A. Martinho Simões
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Individual Reactions
(g) + CH3BrMg (solution) =
(solution) + Br2Mg (solution)
By formula: HBr (g) + CH3BrMg (solution) = CH4 (solution) + Br2Mg (solution)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -274.5 ± 2.2 | kJ/mol | RSC | Holm, 1981 | solvent: Diethyl ether; The enthalpy of formation was calculated using the assumptions and the auxiliary data in Holm, 1981, except for the organic compound, whose enthalpy of formation was quoted from Pedley, 1994 |
(cr) +
(l) = CH3BrMg (solution)
By formula: Mg (cr) + CH3Br (l) = CH3BrMg (solution)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -267.8 ± 4.4 | kJ/mol | RSC | Holm, 1981 | solvent: Diethyl ether; Due to the possibility of side reactions, the enthalpy of reaction was not considered to be sufficiently reliable for deriving the enthalpy of formation of the Grignard reagent Holm, 1981 |
C5H11BrMg (solution) + (solution) =
(solution) + CH3BrMg (solution)
By formula: C5H11BrMg (solution) + CH4 (solution) = C5H12 (solution) + CH3BrMg (solution)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔrH° | -15.1 ± 4.2 | kJ/mol | RSC | Holm, 1983 | solvent: Diethyl ether |
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.
Holm, 1981
Holm, T.,
J. Chem. Soc., Perkin Trans. II, 1981, 464.. [all data]
Pedley, 1994
Pedley, J.B.,
Thermodynamic Data and Structures of Organic Compounds; Thermodynamics Research Center Data Series, Vol I, Thermodynamics Research Center, College Station, 1994. [all data]
Holm, 1983
Holm, T.,
Acta Chem. Scand. B, 1983, 37, 797. [all data]
Notes
Go To: Top, Reaction thermochemistry data, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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