Question

An amino acid x shows c chemical shift of 19.06 ppm and c chemical shift of 53.18 ppm. Identify x

Answer 1

13C Chemical Shift Effects on sp2 and sp Carbons ..... For X = CH3, the effect is upfield by ~6 ppm if X and *C are close in space ...

Answer 2

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2. 1. 0 δ ppm.

H. R. O.

H. H. X H.

X=O,Cl,Br. X H.

X=N,S. Alkanes.

H. H. 1H Chemical Shifts.

The ranges above provide an estimate