The most downfield signal on the 'H NMR spectrum of the compound shown below would appear at approximately: 3.2 ppm 7.5 ppm 12.1 ppm 9.6 ppm H
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- 3-Bromo-1-phenyl-1-propene shows a complex NMR spectrum in which the vinylic proton at C2 is coupled with both the C1 vinylic proton (J = 16 Hz) and the C3 methylene protons (J = 8 Hz). Draw a tree diagram for the C2 proton signal, and account for the fact that a five-line multiplet is observed.What is the 1H NMR data (chemical shift, integration, multiplicty) of hte compound shown below?5. Determine the structure of a compound with a molecular formula of C4H8O2 with the 13C and 'H NMR spectra below. No peaks exchange with D20 on the 'H NMR spectrum. ada I=2 |=3 1=3 1.2 4.0 4.0 3.0 2.0 1.0
- An unknown compound X has the molecular formula C6H140. Compound at 3000 cm. The 'H NMR spectral data of compound X is given below. W Here PPM values are given in delta symbol. absorption 8 ratio triplet 1.0 3 singlet 1.1 quartet singlet 1.5 3.5 3 623 6 O C) III O A) I O D) IV O B) II I 11 OH t III IVPropose the structure that corresponds to the following H NMR spectra 1H-NMR, CDCI; Solvent, Molecular Formula: C3H1002 3.5 3.0 2.5 2.0 1.5 1.0 PpmWhat are the functional groups and ppm range for the following NMR peaks?
- Identify the compound with molecular formula C3H7NO responsible for the 1H NMR spectrum shown here.A compound has the molecular formula: C4H8O2 and gives the following C-13 NMR spectrum. Provide the most likely functional groups for each signal. nmrsim presentation 1 1 C:Bruken Topspin3.5pl7 examdata -170.7658 150 100 d 170.8 (O CH3) ; 60.4 (OCH2); 20.8, 14.1 (2 x C=0) 8170.8 (0 CH₂); 60.4 (OCH₂); 20.8, 14.1 (2 x CH3). 8 170.8 (CH3); 60.4 (C-0); 20.8, 14.1 (2 x OCH₂) 8170.8 (C=0); 60.4 (OCH₂); 20.8, 14.1 (2 x CH3). 8170.8 (C) ; 60.4 (O CH2); 20.8, 14.1 (2 x O CH3) -60.4293 50 -20.7902 -14.1385 [ppm] [+]Which one of the following compounds (from Figure #7) produced the 'H NMR spectrum (from Figure #8) shown below? Figure #7 inte compound A compound B compound C compound D Please click here if image does not display. Figure #8 3 203938 PPM 10 9 8 7 5 4 3 2 1 8 (ppm) Please click here if image does not display. O compound A O compound D O compound C O compound B
- According to this H NMR spectrum, identify the structure of the compound. the only additional information given is the molecular weight is 240.3 14 72 7.0 8 (ppm) 6.8 6.4 3.0 2.5 2.0 6 tppm)Which of the following structures of 1H-NMR spectrum correspond to it?Determine the molecular structure of the compound in the IR spectrum data, 1H NMR ; 13C NMR and MS, explain it for each picture.