The H NMR spectra below is representative of what compound? Chem. Rel. shift area 2.26 1.50 7.04 1.00 1.00 7.37 TMS 10 4 O ppm Chemical shift (8) o-bromotoluene toluene p-bromotoluene m-bromotoluene 2. 6, Intensity
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- From the spectra, determine the structure of the molecule.Remember to ignore the triad in the 13 C NMR spectrum at 77 ppm thatcomes from the NMR solventIdentify the structure of the molecule most consistent with the molecular formula CgH8O₂ with 13C NMR delta peak values at 41.8, 123.7, 129.2, 132.3, 139.6, 141.5, 144.7, and 190.8. ol ol A. B. HO C. D. of OHWhich structure is in agraement with both of thasa R and H NMA data? IR, cm (Intensity)-2965 (strong), 1745 (strong), 1238 (strong) H NMR, ppm (splitting, H): 0.94 (doublet, 6H), 193 (multiplet, 1H), 2.05 (singlet, 3H), 3.8as (doublet, 2H) A. tor B. D. C.
- What compound does this NMR show evidence for? Integration values are given in red below the peaks. 23 4 22 PPM O a. o b. olaa od. ое.If the molecule giving the ¹H NMR spectrum shown below has a total of 10 protons, how many protons are represented by peak II? 4 PPMWhich compound is correct for the given NMR spectrum? |(3) (2) (2) 2 1 PPM CN 1) 2) 3) Structure 1 O Structure 2 Structure 3
- How many signals would you expect to find in the 13C NMR spectrum of the following compound? A. 6 В. 7 C. D. Е. 108 of 15 || | 140 80 PPM 60 40 120 100 Which of the following structures matches the 13C-NMR spectum provided above? CH3 O=C B) C) D) A) H3C- CH2 HC H. C' H. H. C. C H3C H. H-Cċ. H. H. H. CH3 OA B. CIC CH 20 21.36. The MS and 13C NMR spectra for two constitutional Isomers with 4 degrees of unsaturation are shown below. Please determine the molecular structures of the two constitutional isomers. ISOMER A ISOMER B 100 - 100- 80 80 - 60- 60- 40- MTs 140 20- 20- 25 50 100 125 25 s0 100 125 m/z m/z Speales tofat -Zpeaks 200 180 160 140 120 100 80 60 40 20 200 180 160 140 120 100 80 60 40 20 CoS-00-887 ppm CoS-00-686 pm Relative Intensity Relative Intensity
- 30. The following spectrum is representative which of the following types of compounds? 100 ww 40- 20- 1000 3000 2000 1500 Wavenumber tom a. carboxylic acid b. aldehyde c. nitrile d. alcohol e. halide f. Data presented does not provide enough information. 80- 60- 500Please help providing the chemical shift, integration and multiplicity and partial structure for the H NMR.Which carbons will be the most "downfield" in a 13C NMR spectrum?