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11 Nov 2019
FIVE STA e) Draw the structure of cyclopentanol and label each of the inequivalent hydrogen atoms (IH, broad singlet), 4.32 ppm (1H. quintet) and several overlapping peaks between 1.5 and 1.8 ppm (8H, multiplets) Write the letters of the hydrogen atoms you labeled above under the peaks they correspond to. You do not need to identify individual peaks from 1.5-1.8, but do indicate all the hydrogen atoms that would appear in that range. D The 'H NMR spectrum for cyclopentanol (shown below) consists of peaks at 4.8 ppm 3 PPM g) Brieñy explain why there are not just two peaks with clean splitting between 1.5 and 1.8 that are easy to interpret. h) Explain why the peak at 4.8 ppm is a broadened singlet. 6
FIVE STA e) Draw the structure of cyclopentanol and label each of the inequivalent hydrogen atoms (IH, broad singlet), 4.32 ppm (1H. quintet) and several overlapping peaks between 1.5 and 1.8 ppm (8H, multiplets) Write the letters of the hydrogen atoms you labeled above under the peaks they correspond to. You do not need to identify individual peaks from 1.5-1.8, but do indicate all the hydrogen atoms that would appear in that range. D The 'H NMR spectrum for cyclopentanol (shown below) consists of peaks at 4.8 ppm 3 PPM g) Brieñy explain why there are not just two peaks with clean splitting between 1.5 and 1.8 that are easy to interpret. h) Explain why the peak at 4.8 ppm is a broadened singlet. 6
Keith LeannonLv2
5 Apr 2019