{"id":22,"date":"2013-11-04T21:07:42","date_gmt":"2013-11-04T19:07:42","guid":{"rendered":"https:\/\/wissen.science-and-fun.de\/chemistry\/?page_id=22"},"modified":"2013-12-12T22:14:03","modified_gmt":"2013-12-12T20:14:03","slug":"19f-chemical-shifts","status":"publish","type":"page","link":"https:\/\/wissen.science-and-fun.de\/chemistry\/spectroscopy\/19f-chemical-shifts\/","title":{"rendered":"19F chemical shifts"},"content":{"rendered":"

19<\/sup>F chemical shifts<\/h4>\n

CFCl3<\/sub> = 0 ppm<\/p>\n

All chemical shifts given in ppm!<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Type<\/th>\nchemical shift range<\/th>\n<\/tr>\n
CF3<\/sub>CR3<\/sub><\/td>\n-70 to -55<\/td>\n<\/tr>\n
CF3<\/sub>-CO-<\/td>\n-90 to -70<\/td>\n<\/tr>\n
CF<\/span>3<\/span><\/sub>– CF2<\/sub>–<\/td>\n-95 to -80 <\/span><\/td>\n<\/tr>\n
CF3<\/sub>-O-<\/td>\n-70 to -55<\/td>\n<\/tr>\n
CHF2<\/sub><\/span>-CF2<\/sub>–<\/td>\n-145 to -125 <\/span><\/td>\n<\/tr>\n
-CF2<\/sub>-CF2<\/sub><\/span>-CF2<\/sub>–<\/td>\n-145 to -115 <\/span><\/td>\n<\/tr>\n
CF2<\/sub>=CR2<\/sub><\/td>\n-120 to -70<\/td>\n<\/tr>\n
-CF2<\/sub>-NR2<\/sub><\/td>\n-100 to -72<\/td>\n<\/tr>\n
-CF2<\/sub>-O-<\/td>\n-95 to -77<\/td>\n<\/tr>\n
-CF2<\/sub>Hal<\/td>\n-80 to -45<\/td>\n<\/tr>\n
-CH2<\/sub>F<\/td>\n-240 to -205<\/td>\n<\/tr>\n
-CHF-<\/td>\n-230 to -200<\/td>\n<\/tr>\n
-CF<\/span>=CF2<\/sub><\/td>\n-200 to -145 <\/span><\/td>\n<\/tr>\n
-CF<\/span>(CF3<\/sub>)2<\/sub><\/td>\n-197 to -177 <\/span><\/td>\n<\/tr>\n
Ar -F<\/td>\n-200 to -120<\/td>\n<\/tr>\n
CHF=CR2<\/sub><\/td>\n-190 to -105<\/td>\n<\/tr>\n
-CHFHal<\/td>\n-160 to -140<\/td>\n<\/tr>\n
-COF<\/td>\n15 to 30<\/td>\n<\/tr>\n
-SO2<\/sub>F<\/td>\n70 to 70<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
<\/td>δ\/ppm<\/th><\/td>δ\/ppm<\/th><\/td>δ\/ppm<\/th>\n<\/tr>\n<\/thead>\n
MeF<\/td>-271.9<\/td>CFBr3<\/sub><\/td>7.4<\/td>FCH=CH2<\/sub><\/td>-114<\/td>\n<\/tr>\n
EtF<\/td>-213<\/td>CF3<\/sub>Br3<\/sub><\/td>7<\/td>F2<\/sub>C=CH2<\/sub><\/td>-81.3<\/td>\n<\/tr>\n
CF2<\/sub>H2<\/sub><\/td>-143.6<\/td>CFH2<\/sub>Ph<\/td>-207<\/td>F2<\/sub>C=CF2<\/sub><\/td>-135<\/td>\n<\/tr>\n
CF3<\/sub>R<\/td>-60 to -70<\/td>CF2<\/sub>Cl2<\/sub><\/td>-8<\/td>C6<\/sub>F6<\/sub><\/td>-163<\/td>\n<\/tr>\n
AsF5<\/sub><\/td>-66<\/td>[AsF6<\/sub>]-<\/sup><\/td>-69.5<\/td>[BeF4<\/sub>]-<\/sup><\/td>-163<\/td>\n<\/tr>\n
BF3<\/sub><\/td>-131<\/td>ClF3<\/sub><\/td>116; -4<\/td>ClF5<\/sub><\/td>247; 412<\/td>\n<\/tr>\n
IF7<\/sub><\/td>170<\/td>MoF6<\/sub><\/td>-278<\/td>ReF7<\/sub><\/td>345<\/td>\n<\/tr>\n
SeF6<\/sub><\/td>55<\/td>[SbF6<\/sub>]-<\/sup><\/td>-109<\/td>SbF5<\/sub><\/td>-108<\/td>\n<\/tr>\n
[SiF6<\/sub>]2-<\/sup><\/td>-127<\/td>TeF6<\/sub><\/td>-57<\/td>WF6<\/sub><\/td>166<\/td>\n<\/tr>\n
XeF2<\/sub><\/td>258<\/td>XeF4<\/sub><\/td>438<\/td>XeF6<\/sub><\/td>550<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nreferenced to CFCl3<\/sub>
\n
\nSource: Bruker Almanac 2012<\/span>\n\n","protected":false},"excerpt":{"rendered":"

19F chemical shifts CFCl3 = 0 ppm All chemical shifts given in ppm! Type chemical shift range CF3CR3 -70 to -55 CF3-CO- -90 to -70 CF3– CF2– -95 to -80 CF3-O- -70 to -55 CHF2-CF2– -145 to -125 -CF2-CF2-CF2– -145 to -115 CF2=CR2 -120 to -70 -CF2-NR2 -100 to -72 -CF2-O- -95 to -77 -CF2Hal … <\/p>\n

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