Which of the carbon atoms shown displays the signal that is the most downfield in the 13C NMR spectrum? F -C=N | OI III IV OV I = || ||| -C=C- IV V
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- Which of the compounds shown is consistent with the 13C NMR spectrum given? 1 Oll III ON ον CI Previour 50 9 CI = 30 PPM CI 20 ||| CI IV CI V Navt15. Which of the compounds shown displays five signals in its 13C NMR spectrum? Br Br Br Br Br Br Br & & & & & Br Br Br || IV V |||Select the correct structure corresponding to the 'H NMR spectrum below. Integration values are shown above/adjacent to each signal. C4H¬OC1 1.50 1.00 1.01 II A) CH;CCHCH3 II В) CICH-CCH-CH, ČI C) CH;CH2CH2CI D) CH;CCH,CH,CI ОА В C
- 3. How many signals would you expect in the 1H and 13C NMR spectrum of each molecule? H. ethyl p-anisate (licorice) diacetyl (buttered popcorn) hexanal (tutti-fruitti) 1H 13C 1H 13C 1H 13CA'2 The 'H-NMR spectra of cyclohexanol and cyclohexanone are given below. Identify which spectrum belongs to which compound and assign the peaks in each spectrum that substantiate your decision.Part E How many signals are in its 13C NMR spectrum? H3C H_CH3 Br Express your answer as an integer.
- Choose the data that best matches this partial structure; the hydrogens represented by the data are in bold: H H H Od, 2H, 4.0 ppm Os, 2H, 7.1 ppm Od, 2H, 6.8 ppm Ot, 2H, 6.9 ppm HSelect the structure that best fits the integration ratio and peak position in the ¹H NMR spectrum. || ||| ON 5 I OH 4 هام OH || 3 ppm Hot 2 нал IV 1What is the structure from the formula C10H12 and the spectra?