PROBLEMS Predict the chemical shifts for the signals in the proton NMR spectrum of each of the following compounds: OMe 3.13 3.16 3.14 3.15 3.17 3.18
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- Predict the chemical shifts for the signals in the ¹H NMR spectrum for the following compound. Your Answer: II IVPredict the chemical shifts for the signals in the 1H NMR spectrum for the following compound: I III II IV14) The number of proton NMR signals in the molecule shown below is (a) 1 (b) 2 (c) 3 (d) 4 (e) 5
- Carbon NMR what do these peaks mean 196 s, 142 s, 139 s, 137 s, 127 d, 23 q, 21 q, 15 q4. 5. 6. Proton NMR C₂H12 8 4.5 Proton NMR C6H1402 5 wwww Proton NMR C5H10O 6.0 7 4.0 2 5.5 6 2 3.5 2 5.0 5 4 3 Chemical Shift (ppm) 1 1 3.0 2.5 2.0 Chemical Shift (ppm) 4.5 4.0 Chemical Shift (ppm) 2 22 3.5 1.5 2 6 3 1.0 CHEM 207 1 0.5 1.6 1.4 1.2 1.0 0Predict the chemical shift and spiting pattern of each of the signals in the 1H NMR spectrum and sketch the spectrum of compound A above.
- Question is attachedThe explanation Cannot be hand-drawn must be typedBelow is NMR spectra of compound. Identify whether this compound is likely to contain ethyl, isopropyl, and/or tert-butyl groups. Select all that apply. Proton NMR C₂H12 7 Ethyl Isopropyl tert-Butyl O None of the above Chemical Shift (ppm)
- Please provide the unknown structure for the NMR givenThe 1H-NMR spectrum of 1-bromopropane shows three signals and the 1H-NMR spectrum of 2-bromopropane shows two signals. Draw these two molecules and determine the relative integrals of each signal.deduce the structure of these molecules form the nmr signal