Question

1.a. Identify the number of signals that would be observed in the 'H NMR spectrum for each of the molecules below. 1.b. For each spectrum, choose the compound of the four shown above in to that best matches the spectrum. Draw the structure in the box provided, and justify your answer in the space below to receive full credit Spectrum 300 M MNMR in CDCI, Source: ASV Spectrum 300 MHZ 'H NVR spectrum in COCI, Source: ASV tification: y - 3.5-5ppm = X S-1 - Sppan Alkanes Chem 210 Lab F19

Answer 1

1a) Number of signals in 1H-NMr = Number of chemically non-equivalent protons.

b) Spectrum 1: Since four signals are obtained and a doublet hence molecule contain four different kind of protons and CH group. It is second compound.

Spectrum 2 : Since four signals are obtained and two triplets and two multiplet thus it is first compound.

la ma e ra xa E lb) spectrum I spectrum 2 Scanned with CamScanner

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