Table of characteristic proton nmr shifts type of proton type of compound chemical shift range ppm rch 3 1 aliphatic 0 9 r 2 ch 2 2 aliphatic 1 3 r 3 ch 3 aliphatic 1 5 c c h vinylic 4 6 5 9 c c h vinylic conjugated 5 5 7 5 c c h acetylenic 2 3 ar h aromatic 6 8 5 ar c h benzylic 2 2 3 c c ch 3 allylic 1 7 hc f. R c h phoh hocr 2 h xcr 2 h x f cl br i rccr 2 xh x o cr 2 rcocr 2 h rocr 2 h 220200180160140120100806040200 20 220200180160140120100806040200 20 saturated alkanes carbonyls vinyl aromatics nitriles rocr 3 arcr 2 h alkyne r 3coh o 1h 2nmr shift ranges δ ppm vinyl r 3c f r 3c clrc i r 3c br rccr 3 o δ ppm 13c nmr shift ranges r 2nh. 1 h nmr chemical shifts.
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