CHEM 344 NMR Spectroscopy Problem Set II Key

CHEM 344 NMR Spectroscopy Problem Set II Key - l<...

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Unformatted text preview: l< Chemistry 344 6 y Spectroscopy Part II ' Problem Set For each of the following structures, label the equivalent sets of hydrogens as a, b, c, etc. and sketch the 1H NMR spectrum on one of the attached blanks. Show each NMR signal at the correct chemical shift (approximate, use correlation table attached to this problem set) with the correct multiplicity (spin-spin splitting) and relative intensities (approximate). Label each signal with the letter corresponding to the hydrogens it represents. A. p D. i" H o HHHH a L555 B. . -‘ a CC H HH . qH OKHO‘ H . a . '- H'H H _- .15 so :1”- can on N N m a m _ m N N m .3 3 Nfl 3 . /Q\e/\/ can a- H. N m N m m N w, m 3 3 NH 2 ILI.L|FL|LL_(Lr_.._IL_LIrLrL_LLIHL||rl[FLILIFl—|_L . NZ, . N» @ , 0 AVWM x7.ch 04), IdEW “6* E 4x44figd ewe “(1.1.500V . III. For each of the attached 1H NMR spectra (labeled A, B, C) draw the structure of the compound it corresponds to. The formulae of compounds A, B, and C are given below. Note that two NMR plots are shown for each compound. The front of the page shows the entire spectral region whereas the back of the page shows an expansion of the areas where the NMR signals occur. A. C5H1002 Cl? /\ C) O B. C5H1002 ‘ l l, C. C5H100 O’ _ 0 l l Ppm 10 ll 12 13 Ppm 12 11 10 13 ...
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CHEM 344 NMR Spectroscopy Problem Set II Key - l<...

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