| Type of Compound | Chemical Shift Range (ppm) Relative to neat CFCl3 |
|---|---|
| -F-C=O | -70 to -20 |
| -CF3- | +40 to +80 |
| -CF2- | +80 to +140 |
| -CF- | +140 to +250 |
| -ArF- | +80 to +170 |
Chemical Shift Table
For certain compounds, the listed chemical shift pertains to the F shown in bold. The primary references for these values are:
1) the 1991 Bruker Almanac, and
2) Compilation of reported F19 NMR chemical shifts, 1951 to mid-1967 by Claude H. Dungan and John R. Van Wazer.
Negative shifts are those that appear upfield of CFCl3 and positive shifts are those that appear downfield.
| Compound | Chemical Shift (ppm) Relative to neat CFCl3 |
|---|---|
| CFCl3 | 0.00 |
| MeF | -271.9 |
| CF3H (in CFCl3) | -78.6 |
| CF3H (in EtO) | -78.6 |
| CF2H2 | -143.6 |
| EtF | -213 |
| FCH=CH2 | -114 |
| F2C=CH2 | -81.3 |
| F2C=CF2 | -135 |
| CF3COOH (in CFCl3) | -76.55 |
| CF3COOH (neat) | -78.5 |
| CF3COOH (in CCl4 | -76.3 |
| CF3COOC6H6 | -73.85 |
| CF3COOCH2C6H6 | -75.02 |
| CF3COOCH3 | -74.21 |
| CF3COOEt (neat) | -78.7 |
| CF3COO(CH2)n | -74 to -75 |
| C6F6 | -164.9 |
| C6H5F | -113.5 |
| p-FC6H4F | -106.0 |
| CFH2Ph | -207 |
| C6H5CF3 | -63.72 |
| C4F8 | -135.15 |
| C5F10 | -132.9 |
| CF3R | -60 to -70 |
| CHF2OR | ~-82 |
| (CF3)2CO | -84.6 |
| CH2CN | -251 |
| F2 | +422.92 |
| CF3Cl | -28.6 |
| ClF3 | +116, -4 |
| ClF5 | +247,+412 |
| CF2Cl2 | -8 |
| CFCl2CFCl2 | -67.8 |
| CFBr3 | +7.38 |
| CF2Br2 | +7 |
| IF4F(equatorial) | +58.9 |
| IF7 | +170 |
| AsF3 | -40.6 |
| AsF5 | -66 |
| [AsF6]-1 | -69.5 |
| BF3 | -131.3 |
| (CH3)2O.BF3 | -158.3 |
| (C2H5)2O.BF3 | -153 |
| [BeF4]-1 | -163 |
| MoF6 | -278 |
| ReF7 | +345 |
| SF6 | +57.42 |
| SO2F | -78.5 |
| S2O5F2 | +47.2 |
| SbF5 | -108 |
| [SbF6]-1 | -109 |
| SeF6 | +55 |
| (C2H5)2SiF2 | -143.0 |
| SiF4 | -163.3 |
| [SiF6]-2 | -127 |
| TeF6 | -57 |
| WF6 | +166 |
| XeF2 | +258 |
| XeF4 | +438 |
| XeF6 | +550 |
| NF3 | 147 |
| SOF2 | 75.68 |
| C6H5SO2F (dilute) | 65.464 |
| C6H5SO2F (20% conc) | 65.514 |
| SF6 (dilute) | 57.617 |
| SF6 (10% conc | 57.42 |
| SO2F2 | 33.17 |
| CBr3F (dilute) | 7.388 |
| CBr3F (80% conc) | 7.043 |
| CCl2F2 | -6.848 |
| CClF3 | -28.1 |
| PF3 | -34.0 |
| (CF3)3N (dilute) | -55.969 |
| (CF3)3N (30% conc) | -55.969 |
| CF3CF2CF2I | -60.470 |
| CF4 | -62.3 |
| C6H5CF3 (dilute) | -63.732 |
| C6H5CF3 (40% conc) | -63.370 |
| PF5 | -71.5 |
| CCl2F.CCl2F (dilute) | -67.775 |
| CCl2F.CCl2F (20% conc) | -67.834 |
| (CF3)3CF | -74.625 |
| CF3CO2H (dilute) | -76.530 |
| CF3CO2H (20% conc) | -76.542 |
| CF3(CF2)5CF3 | -81.60 |
| CF3(CF2)2CF3 | -81.85 |
| [CF3CF2CF2]N | -85.19 |
| POF3 | -90.7 |
| CF3CF2CF2CF2CN | -107.1 |
| CF3CF2CF2CF2CN | -105.764 |
| Compound | Coupling Constant (Hz) |
|---|---|
| (CF3CF2)2NCF3 | 10.2 |
| (CF3CF2)2NCF3 | 15.18 |
| (CF3CF2)2NCF3 | 6.8 |
| [CF3CF2]3N | 13.6 |
| CF3CF2N[CF3]2 | <1 |
| CF3CF2N[CF3]2 | 16 |
| CF3CF2N[CF3]2 | 6 |
| (CF3CF2)2O | 3.4 |
| (CF3]3CF | 1.4 |
| CF3CF2H | 2.8 |
| CF3CFH2 | 15.5 |
| CF3CF2CHF2 | 4.5 |
| CF3CF2CHF2 | 7.3 |
| CF3CF2CH2F | 15.2 |
| CF3CF2CH2F | 7.9 |
| CF2Cl.CF2.CH2F | 15.1 |
| CF2Cl.CF2.CH2F | 7.7 |
| CF2Cl.CF2.CH2F | 3.9 |
| CF2Br.CF2.CH2F | 15.5 |
| CF2Br.CF2.CH2F | 7.7 |
| CF2Br.CF2.CH2F | 3.9 |
| CFFBr.CHFBr | 21 |
| CFFBr.CHFBr | 24 |
| CFFBr.CHFBr | 174 |
| CFFBr.CHFCl | 18 |
| CFFBr.CHFCl | 18 |
| CFFBr.CHFCl | 177 |
| CFFBr.CFClBr | 13 |
| CFFBr.CFClBr | 14 |
| CFFBr.CFClBr | 159 |
| CFF(SiCl3).CFClBr | 16.8 |
| CFF(SiCl3).CFClBr | 16.8 |
| CFF(SiCl3).CFClBr | 343 |
| CF3.CFF.CFICl | 270.4 |
| CFF=CFCl | 76 |
| CFF=CFCl (cis) | 56 |
| CFF=CFCl (trans) | 116 |
| CFCl=CFCl (cis) | 37.5 |
| CFCl=CFCl (trans) | 129.57 |
| CFF=CFCF3 | 57 |
| CFF=CFCF3 (cis) | 39 |
| CFF=CFCF3 (trans) | 116 |
| CFF=CFCF3 (trans) | 8 |
| CFF=CFCF3 (cis) | 22 |
| CFF=CFCF3 | 13 |
| (cyclopropane) CH2.CFF.CHCH3 | 157 |
| (cyclobutane) CH2.CFF.CCl2.CCl2 | 187 |
| (cyclobutene) CFF.CH(C2H5).CCl2=CCl | 192 |
| (cyclobutane) CFF.CFF.CH2.CHCClH2 | 230 |
| (cyclobutane) CFF.CFF.CH2.CHCClH2 | 240 |
| (cyclohexane) CFH.CFH.CFH.CFH.CFH.CFF | 284 |