Question

HI 10 MILICII UI Lhe following below: a. TMS b. high-field or upfield side c. MHz d. delta () e. low-field or downfield side f. chemical shift g. specific absorption For each of the compounds below tell how many signals you would expect the molecule to its normal, broadband decoupled "C NMR spectra. CH3 H3C-C-CH3 CH 15 H;C CH.CH C=C "742 H H For each compound below tell how many types of nonequivalent protons there are. CH; HC-C-CH3 НЕ CH 100
15 and 16 please

Answer 1

15 : compound no 15 will show two different CNMR peaks, one quaternery carbon and second CH3 carbons, as all four carbon has same vicinity they vl show single peak.

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16: compound no. 16 will show 5 different peaks. As no two carbons have similar environment.

17: it has only one type of proton.

18: has three types of proton. Protons from both CH3 will show one peak. C-H second peak. And phenyl ring protons third peak.