284
284
6.2.5 19 F Chemical Shifts and Coupling Constants of Fluorinated
Alicyclics (δ in ppm relative to CFCl 3 , |J FF | in Hz)
CF 3
F
F
F
F
F
F
F
F
F
F
F
CF 3
F
F
F
F
F
F
F
F
F
F
F
CF 3
F
F
F
F
F
F
F
F
F
F
F
CF 3
F
F
F
F
F
F
F
F
F
F
F
F
F -186
-166
-189
-122
-124
-120
-70
-132
-140
-142
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
-121
-224
| 2 J FF | 160
| 2 J FF | 220
| 2 J FF | 284
| 3 J FF | 13.5
| 3 J FF | 13.5
| 4 J FF | 6
| 4 J FF | 2
| 3 J FF | 0
| 2 J FF | 286
| 2 J FF | 284
| 2 J FF | 291
| 3 J FF | 13
| 4 J FF | 20
| 4 J FF | 25
| 4 J FF | 3
F
F
F
F
F
F
-218
-160
-171
-174
-165
-160
-151
-135
-133
-133
-120
CF 2
F 2 C
F 2 C
F 2 C CF 2
CF 2
CF 2
CF 2
F 2 C CF 2
CF 2
F 2 C
CF 2
CF 2
CF 2
F 2 C CF 2
CF 2
CF 2
F 2 C
F 2 C CF 2
CF 2
CF 2
CF 2
F 2 C
F -130
Heteronuclear NMR Spectroscopy
6