Bromochlorofluoromethane
Chemical compound
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Bromochlorofluoromethane or fluorochlorobromomethane, is a chemical compound and trihalomethane derivative with the chemical formula CHBrClF. As one of the simplest possible stable chiral compounds, it is useful for fundamental research into this area of chemistry.[1] However, its relative instability to hydrolysis,[2] and lack of suitable functional groups, made separation of the enantiomers of bromochlorofluoromethane especially challenging,[3] and this was not accomplished until almost a century after it was first synthesised, in March 2005, though it has now been done by a variety of methods.[4][5][6][7] More recent research using bromochlorofluoromethane has focused on its potential use for experimental measurement of parity violation, a major unsolved problem in quantum physics.[8][9][10] For example, the S enantiomer is predicted to be lower in energy by about 2.356×10−16 eV (56.97 mHz),[11] and the frequency of the C−F vibrational mode should be about 2.4 mHz lower for the R-enantiomer.[10]
Left: (S)-Bromochlorofluoromethane Right: (R)-Bromochlorofluoromethane | |
| Names | |
|---|---|
| Preferred IUPAC name
Bromo(chloro)fluoromethane | |
| Other names
Bromochlorofluoromethane | |
| Identifiers | |
3D model (JSmol) |
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PubChem CID |
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| UNII | |
CompTox Dashboard (EPA) |
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| Properties | |
| CHBrClF | |
| Molar mass | 147.37 g·mol−1 |
| Density | 1.953 g/cm3 |
| Melting point | −115 °C; −175 °F; 158 K |
| Boiling point | 36 °C; 97 °F; 309 K |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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See also
- Bromochlorodifluoromethane, used in fire extinguishers
- Bromochlorofluoroiodomethane, a theoretical derivative with iodine replacing the hydrogen