1
answer
0
watching
311
views
19 Nov 2019
1. For each of the compounds shown below, determine the following: Number of signals in the 13C NMR spectrum, and · o Approximate chemical shift value for each signal Number of signals in the 'H NMR spectrum, and o o o Approximate chemical shift value for each signal Multiplicity (splitting) of each signal Relative integration of each signal (a) Worked example: WC NMR: 2 unique carbons are present so two signals are expected in the spectrum 40-90 ppmm 0-40 ppm H NMR: 2 unique types of hydrogen are present so two signals are expected in the spectrum. Since they are present in different quantities their integrations will differ, as will their splitting due to different number of adjacent protons 3-4 ppm, quartet, 2H ææ 1 ppm, triplet, 3H
1. For each of the compounds shown below, determine the following: Number of signals in the 13C NMR spectrum, and · o Approximate chemical shift value for each signal Number of signals in the 'H NMR spectrum, and o o o Approximate chemical shift value for each signal Multiplicity (splitting) of each signal Relative integration of each signal (a) Worked example: WC NMR: 2 unique carbons are present so two signals are expected in the spectrum 40-90 ppmm 0-40 ppm H NMR: 2 unique types of hydrogen are present so two signals are expected in the spectrum. Since they are present in different quantities their integrations will differ, as will their splitting due to different number of adjacent protons 3-4 ppm, quartet, 2H ææ 1 ppm, triplet, 3H
Bunny GreenfelderLv2
1 Mar 2019