3D model (JSmol)
|Molar mass||120.384 g mol−1|
|Density||1.500 g cm−3|
|Melting point||−64 °C (−83 °F; 209 K)|
|Boiling point||61 °C (142 °F; 334 K)|
|R-phrases (outdated)||R22, R38, R40, R48/20/22|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Deuterated chloroform (CDCl3), also known as chloroform-d, is an isotopologue of chloroform (CHCl3) in which the hydrogen atom ("H") is replaced with a deuterium (heavy hydrogen) isotope ("D"). Deuterated chloroform is the most common solvent used in NMR spectroscopy of organic molecules, because of its ability to dissolve a wide variety of organic molecules. Most compounds soluble in dichloromethane are soluble in chloroform, but chloroform is much cheaper than deuterated DCM.
The properties of CDCl3 are virtually identical to those of regular chloroform.
In proton NMR spectroscopy, the deuterium does not exhibit a large interfering peak, whereas protium (regular hydrogen) shows a large peak in the spectrum. Most commercial chloroform-d, however, contains a small amount of non-deuterated chloroform, often known as the residual; this results in a small singlet at 7.26 ppm. In carbon-13 NMR, the sole carbon deuterated chloroform shows a triplet at a chemical shift of 77 ppm with the three peaks being about equal size, as the deuterium has a spin of 1.
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