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deuterated chloroform : ウィキペディア英語版 | deuterated chloroform
|Section2= |Section3= |Section4= }} Deuterated chloroform (CDCl3), is an isotopologue of chloroform (CHCl3) in which the hydrogen atom ("H") is replaced with a deuterium (heavy hydrogen) isotope ("D"). Deuterated chloroform is a common solvent used in NMR spectroscopy of organic molecules.〔(The Theory of NMR - Solvents for NMR spectroscopy )〕 In proton NMR spectroscopy, the deuterium does not exhibit a large interfering peak, whereas protium (regular hydrogen) shows a large peak in the spectrum. 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.〔 ==References==
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