1) How many signals would you expect to see molecule? would you expect to see in...
For each of the compounds below tell how many signals you would expect the molecule to have in its 1H NMR spectra. (4 points) For each of the compounds below tell how many signals you would expect the molecule to have in its H NMR spectra. 7. 'H signals CH a. b. CH3 C. d. Cl
Question 13 5 pts How many signals would you expect to see in the 'C NMR spectrum of the following compound? осн, OCH, 3 4 Question 19 Predict the number of signals in the 13C NMR spectrum for the following structure. 5 8 7
How many signals would you expect each of the following molecules to have in its 'H and 1C spectra? Molecule #1 Molecule #3 Molecule #2 НэС CHз CH3CH2C(CH3)2CH2CH3 H-NMR absorptions absorptions absorptions 3C-NMR absorptions 13 | absorptions absorptions How many signals would you expect each of the following molecules to have in its 'H and 1C spectra? Molecule #1 Molecule #3 Molecule #2 НэС CHз CH3CH2C(CH3)2CH2CH3 H-NMR absorptions absorptions absorptions 3C-NMR absorptions 13 | absorptions absorptions
1. How many signals would you expect in the 'H and 13C NMR spectra of the following molecules? (For 'H NMR, it may help to draw in all the H atoms.) w TH: TH: 13C: 13C: TH: 13C: Hi TH: TH: 13C: 13C: 13C:
How many signals would you expect to see in the 13 C NMR spectra for: a. 4 - (hydroxymethyl) - 2 - methoxyphenol b. 4 - hydroxy - 3 - methoxybenzaldehyde c. 4 - (hydroxymethyl) - 2 - methoxyphenyl acetate
PROBLEM 16.28 How many 13C NMR signals would you expect for the molecule shown here? Explain.
Question 5 1 pts Jf you had the compound 1-butene, how many signals would you expect to see in the 13C-NMR spectrum? more than 6
32) How many signals would you expect to see in the 1H NMR spectrum of the following compound? CCH3 CH3 A) 6 B) 3 C) 5 D) 4 E) 2
19) How many signals would you expect to see in the 1H NMR spectrum of the following compound? ÖCH CH3 A) 5 B) 4 C) 3 D) 6 E) 2
50. For the following compound how many different signals would you see in the proton NMR? (Assume that you can see them all.) A) 4 B) 5 C) 6 D) 7 E) 8 . An organic compound absorbs strongly in the IR at 1687 em. Its 'H NMR spectrum consists of two signals, a singlet at 2.1 ppm and a multiplet centered at 7.1 ppm. Its mass spectrum shows significant peaks at m/z 120, m/z 105 and m/z 77. This...