NMR impurities in CD₂Cl₂
Chemical shifts of common laboratory solvents, organics and gases measured in CD₂Cl₂ (deuterated dichloromethane). Use it to identify the peaks in your spectrum that are not your compound.
- Residual solvent, ¹H
- 5.32 ppm
- Residual solvent, ¹³C
- 53.84 ppm
- Water, ¹H
- 1.52 ppm
To search these by shift instead of reading the table, open the lookup tool for CD₂Cl₂ or view them on a ppm axis.
¹H shifts in CD₂Cl₂
71 signals, ordered by chemical shift.
| Impurity | Group | δ (ppm) | Mult. |
|---|---|---|---|
| pyrrole | NH | 8.69 | br t |
| pyridine | CH(2,6) | 8.59 | m |
| dimethylformamide | CH | 7.96 | s |
| pyridine | CH(4) | 7.68 | m |
| imidazole | CH(2) | 7.63 | s |
| benzene | CH | 7.35 | s |
| chloroform | CH | 7.32 | s |
| pyridine | CH(3,5) | 7.28 | m |
| toluene | CH(3,5) | 7.24 | m |
| toluene | CH(2,4,6) | 7.15 | m |
| imidazole | CH(4,5) | 7.07 | s |
| pyrrole | CH(2,5) | 6.79 | m |
| pyrrole | CH(3,4) | 6.19 | m |
| propylene | CH | 5.84 | m |
| ethylene | CH₂ | 5.40 | s |
| solvent residual signalssolvent | — | 5.32 | — |
| propylene | CH₂(2) | 5.03 | dm, 17 |
| propylene | CH₂(1) | 4.93 | dm, 10 |
| hydrogen | H₂ | 4.59 | s |
| nitromethane | CH₃ | 4.31 | s |
| ethyl acetate | CH₂CH₃ | 4.08 | q, 7 |
| 2-propanol | CH | 3.97 | sept, 6 |
| 1,2-dichloroethane | CH₂ | 3.76 | s |
| tetrahydrofuran | CH₂(2,5) | 3.69 | m |
| ethanol | CH₂ | 3.66 | q, 7 |
| ethylene glycol | CH₂ | 3.66 | s |
| 1,4-dioxane | CH₂ | 3.65 | s |
| 18-crown-6 | CH₂ | 3.59 | s |
| diglyme | CH₂ | 3.57 | m |
| diglyme | CH₂ | 3.50 | m |
| DME | CH₂ | 3.49 | s |
| diethyl ether | CH₂ | 3.43 | q, 7 |
| methanol | CH₃ | 3.42 | s |
| DME | CH₃ | 3.34 | s |
| diglyme | OCH₃ | 3.33 | s |
| dimethylformamide | CH₃ | 2.91 | s |
| dimethylformamide | CH₃ | 2.82 | s |
| pyrrolidine | CH₂(2,5) | 2.82 | m |
| HMPA | CH₃ | 2.60 | d, 9.5 |
| triethylamine | CH₂ | 2.48 | q, 7 |
| toluene | CH₃ | 2.34 | s |
| hexamethylbenzene | CH₃ | 2.20 | s |
| acetone | CH₃ | 2.12 | s |
| acetic acid | CH₃ | 2.06 | s |
| ethyl acetate | CH₃CO | 2.00 | s |
| acetonitrile | CH₃ | 1.97 | s |
| tetrahydrofuran | CH₂(3,4) | 1.82 | m |
| propylene | CH₃ | 1.71 | dt, 6.4, 1.5 |
| pyrrolidine | CH₂(3,4) | 1.67 | m |
| water | OH | 1.52 | s |
| cyclohexane | CH₂ | 1.44 | s |
| ethanol | OH | 1.33 | s |
| propane | CH₂ | 1.32 | sept, 7.3 |
| n-pentane | CH₂ | 1.30 | m |
| H grease | CH₂ | 1.27 | br s |
| n-hexane | CH₂ | 1.27 | m |
| tert-butyl alcohol | CH₃ | 1.24 | s |
| ethyl acetate | CH₂CH₃ | 1.23 | t, 7 |
| ethanol | CH₃ | 1.19 | t, 7 |
| 2-propanol | CH₃ | 1.17 | d, 6 |
| diethyl ether | CH₃ | 1.15 | t, 7 |
| methanol | OH | 1.09 | s |
| triethylamine | CH₃ | 0.99 | t, 7 |
| propane | CH₃ | 0.90 | t, 7.3 |
| n-hexane | CH₃ | 0.89 | t, 7 |
| n-pentane | CH₃ | 0.89 | t, 7 |
| H grease | CH₃ | 0.84–0.90 | m |
| ethane | CH₃ | 0.85 | s |
| methane | CH₄ | 0.21 | s |
| silicone grease | CH₃ | 0.09 | s |
| HMDSO | CH₃ | 0.07 | s |
¹³C{¹H} shifts in CD₂Cl₂
77 signals, ordered by chemical shift.
| Impurity | Group | δ (ppm) |
|---|---|---|
| acetone | CO | 206.78 |
| carbon disulfide | CS₂ | 192.95 |
| acetic acid | CO | 175.85 |
| ethyl acetate | CO | 171.24 |
| dimethylformamide | CH | 162.57 |
| pyridine | CH(2,6) | 150.27 |
| toluene | C(1) | 138.36 |
| pyridine | CH(4) | 136.16 |
| imidazole | CH(2) | 135.76 |
| propylene | CH | 134.21 |
| hexamethylbenzene | C | 132.09 |
| toluene | CH(2,6) | 129.35 |
| benzene | CH | 128.68 |
| toluene | CH(3,5) | 128.54 |
| toluene | CH(4) | 125.62 |
| carbon dioxide | CO₂ | 125.26 |
| pyridine | CH(3,5) | 124.06 |
| ethylene | CH₂ | 123.20 |
| imidazole | CH(4,5) | 122.16 |
| pyrrole | CH(2,5) | 117.93 |
| acetonitrile | CN | 116.92 |
| propylene | CH₂ | 115.70 |
| pyrrole | CH(3,4) | 108.02 |
| carbon tetrachloride | CCl₄ | 96.52 |
| chloroform | CH | 77.99 |
| diglyme | CH₂ | 72.25 |
| DME | CH₂ | 72.24 |
| diglyme | CH₂ | 70.70 |
| 18-crown-6 | CH₂ | 70.47 |
| tert-butyl alcohol | (CH₃)₃C | 69.11 |
| tetrahydrofuran | CH₂(2,5) | 68.16 |
| 1,4-dioxane | CH₂ | 67.47 |
| diethyl ether | CH₂ | 66.11 |
| 2-propanol | CH | 64.67 |
| ethylene glycol | CH₂ | 64.08 |
| nitromethane | CH₃ | 63.03 |
| ethyl acetate | CH₂ | 60.63 |
| DME | CH₃ | 59.02 |
| diglyme | CH₃ | 58.95 |
| ethanol | CH₂ | 58.57 |
| solvent residual signalssolvent | — | 53.84 |
| methanol | CH₃ | 50.45 |
| pyrrolidine | CH₂(2,5) | 47.02 |
| triethylamine | CH₂ | 46.75 |
| 1,2-dichloroethane | CH₂ | 44.35 |
| HMPA | CH₃ | 36.99 |
| dimethylformamide | CH₃ | 36.56 |
| n-pentane | CH₂(3) | 34.57 |
| n-hexane | CH₂(3,4) | 32.01 |
| tert-butyl alcohol | (CH₃)₃C | 31.46 |
| dimethylformamide | CH₃ | 31.39 |
| acetone | CH₃ | 31.00 |
| H grease | CH₂ | 30.14 |
| cyclohexane | CH₂ | 27.38 |
| tetrahydrofuran | CH₂(3,4) | 25.98 |
| pyrrolidine | CH₂(3,4) | 25.83 |
| 2-propanol | CH₃ | 25.43 |
| n-hexane | CH₂(2,5) | 23.07 |
| n-pentane | CH₂(2,4) | 22.77 |
| toluene | CH₃ | 21.53 |
| ethyl acetate | CH₃CO | 21.15 |
| acetic acid | CH₃ | 20.91 |
| propylene | CH₃ | 19.47 |
| ethanol | CH₃ | 18.69 |
| hexamethylbenzene | CH₃ | 16.93 |
| propane | CH₃ | 16.63 |
| propane | CH₂ | 16.63 |
| diethyl ether | CH₃ | 15.44 |
| ethyl acetate | CH₃ | 14.37 |
| n-hexane | CH₃ | 14.28 |
| n-pentane | CH₃ | 14.24 |
| triethylamine | CH₃ | 12.12 |
| ethane | CH₃ | 6.91 |
| acetonitrile | CH₃ | 2.03 |
| HMDSO | CH₃ | 1.96 |
| silicone grease | CH₃ | 1.22 |
| methane | CH₄ | −4.33 |
Other solvents
Data reproduced from Fulmer et al., Organometallics 2010, 29, 2176-2179. See about for how to read these values.