{"id":13,"date":"2013-11-04T19:08:18","date_gmt":"2013-11-04T17:08:18","guid":{"rendered":"https:\/\/wissen.science-and-fun.de\/chemistry\/?page_id=13"},"modified":"2013-11-04T21:01:01","modified_gmt":"2013-11-04T19:01:01","slug":"13c-chemical-shifts","status":"publish","type":"page","link":"https:\/\/wissen.science-and-fun.de\/chemistry\/spectroscopy\/13c-chemical-shifts\/","title":{"rendered":"13C chemical shifts"},"content":{"rendered":"

13<\/sup>C chemical shifts<\/h4>\n

SiMe4<\/sub> = 0 ppm<\/p>\n

All chemical shifts given in ppm!<\/p>\n

Source: Rauscher, Voigt, Wilke, Wilke<\/p>\n

Chemische Tabellen und Rechentafeln f\u00fcr die analytische Praxis<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\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
cyclopropyl<\/td>\n60 to 5<\/td>\n<\/tr>\n
CH3<\/sub>– (primary)<\/td>\n0 to 30<\/td>\n<\/tr>\n
CH3<\/sub>-Hal<\/td>\n0 to 35<\/td>\n<\/tr>\n
-CH2<\/sub>-Hal<\/td>\n0 to 45<\/td>\n<\/tr>\n
CR3<\/sub> – CR3<\/sub> alkane<\/td>\n5 to 55<\/td>\n<\/tr>\n
CH3<\/sub>-S-<\/td>\n10 to 30<\/td>\n<\/tr>\n
CH3<\/sub>-N<<\/td>\n20 to 40<\/td>\n<\/tr>\n
-CH2<\/sub>-S-<\/td>\n25 to 45<\/td>\n<\/tr>\n
-CH2<\/sub>– (secondary)<\/td>\n25 to 45<\/td>\n<\/tr>\n
>CH- (tertiary)<\/td>\n30 to 60<\/td>\n<\/tr>\n
>CH-Hal<\/td>\n30 to 65<\/td>\n<\/tr>\n
CR4<\/sub> (quarternary)<\/td>\n35 to 70<\/td>\n<\/tr>\n
CR3<\/sub>-Hal<\/td>\n35 to 75<\/td>\n<\/tr>\n
>CH-S-<\/td>\n40 to 55<\/td>\n<\/tr>\n
-CH2<\/sub>-N<<\/td>\n40 to 60<\/td>\n<\/tr>\n
CH3<\/sub>-O-<\/td>\n40 to 60<\/td>\n<\/tr>\n
-CH2<\/sub>-O-<\/td>\n40 to 70<\/td>\n<\/tr>\n
>CH-N<<\/td>\n50 to 70<\/td>\n<\/tr>\n
CR3<\/sub>-S-<\/td>\n55 to 70<\/td>\n<\/tr>\n
>CH-O-<\/td>\n60 to 75<\/td>\n<\/tr>\n
>C-N<<\/td>\n65 to 75<\/td>\n<\/tr>\n
CR3<\/sub>-O-<\/td>\n70 to 85<\/td>\n<\/tr>\n
-C\u2261C- (alkines)<\/td>\n70 to 100<\/td>\n<\/tr>\n
-O-C\u2261N (cyanates)<\/td>\n105 to120<\/td>\n<\/tr>\n
-S-C\u2261N (thiocyanates)<\/td>\n110 to 120<\/td>\n<\/tr>\n
-C\u2261N (cyanides)<\/td>\n110 to 130<\/td>\n<\/tr>\n
>C=C< (alkene)<\/td>\n110 to 150<\/td>\n<\/tr>\n
>C=C< (aromats)<\/td>\n110 to 135<\/td>\n<\/tr>\n
-N=C=O (isocyanates)<\/td>\n115 to 135<\/td>\n<\/tr>\n
>C=C< (heteroaromates)<\/td>\n115 to 140<\/td>\n<\/tr>\n
-X-C<\/i>=C< (aromates)<\/td>\n125 to 145<\/td>\n<\/tr>\n
C\u2261N- (isocyanides)<\/td>\n130 to 150<\/td>\n<\/tr>\n
-X-C<\/i>=C< (heteroaromates)<\/td>\n135 to 155<\/td>\n<\/tr>\n
>C=N- (azomethines)<\/td>\n145 to 165<\/td>\n<\/tr>\n
O=C(NR2<\/sub>)2<\/sub> (ureas)<\/td>\n150 to 170<\/td>\n<\/tr>\n
O=C(OR)2<\/sub> (carbonates)<\/td>\n150 to 160<\/td>\n<\/tr>\n
(-CO)2<\/sub>O (anhydrides)<\/td>\n150 to 175<\/td>\n<\/tr>\n
>C=NOH (oximes)<\/td>\n155 to 165<\/td>\n<\/tr>\n
-C(=O)OR (esters)<\/td>\n155 to 175<\/td>\n<\/tr>\n
-CO-NHR (amides)<\/td>\n160 to 170<\/td>\n<\/tr>\n
-COOH (carbon acid)<\/td>\n160<\/td>\n<\/tr>\n
>C=O (\u03b1-haloketones)<\/td>\n160 to 200<\/td>\n<\/tr>\n
-COCl (acid chlorides)<\/td>\n165 to 185<\/td>\n<\/tr>\n
(-CO)2<\/sub>NR (acid imides)<\/td>\n165 to 180<\/td>\n<\/tr>\n
S=C(NR2<\/sub>)2<\/sub> (thioureas)<\/td>\n165 to 185<\/td>\n<\/tr>\n
-CH=O (\u03b1-haloaldehydes\/ \u03b1,\u03b2- unsaturated aldehydes)<\/td>\n170 to 190 \/ 175 to 195<\/td>\n<\/tr>\n
=C=<\/td>\n175 to 200<\/td>\n<\/tr>\n
-CH=O (aldehydes)<\/td>\n175 to 205<\/td>\n<\/tr>\n
>C=S (thioketones)<\/td>\n<\/td>\n<\/tr>\n
>C=O (ketones)<\/td>\n175 to 225<\/td>\n<\/tr>\n
-C=O (\u03b1,\u03b2- unsaturated ketones)<\/td>\n180 to 215<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

13C chemical shifts SiMe4 = 0 ppm All chemical shifts given in ppm! Source: Rauscher, Voigt, Wilke, Wilke Chemische Tabellen und Rechentafeln f\u00fcr die analytische Praxis Type chemical shift range cyclopropyl 60 to 5 CH3– (primary) 0 to 30 CH3-Hal 0 to 35 -CH2-Hal 0 to 45 CR3 – CR3 alkane 5 to 55 CH3-S- … <\/p>\n

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