31.B Which of the following structures conforms to the data given below? a) I b) ll c) III III IV IV e) V The compound has a molecular formula C4H9CI In the 'H NMR spectrum: Doublet, 1.20 ppm (6H) Septet, 2.40 ppm (1H) Doublet, 3.60 ppm (2H)
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Which of the following structures conforms to the data given below? Please explain why the correct answer is letter B. Include detailed steps and drawings to explain the answer.
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- How would you use NMR (either 13C or 1H) to distinguish between the following pairs of isomers?Compound B is isomeric with A (Problem 19-79) and shows an IR peak at 1715 cm-1. The 1H NMR spectrum of B has peaks at 2.4 (1 H, septet, 17 Hz), 2.1 (3 H, singlet), and 1.2 (6 H, doublet, 17 Hz). What is the structure of B?Q2- What is the structure of the compound that has the following 1H NMR data and molecular formula: C5H11Cl: 1H quintet at 3.38 ppm, 1H Octet at 1.91 ppm, 3H doublet at 1.55 ppm, 6H doublet at 0.88 ppm a. b. C. d. CI CI CI CI
- 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 IVNoneShow all atoms in the structure most consistent with each NMR spectrum (and additional spectroscopic data)
- NoneThe 'H NMR and 13C spectra of a compound with a molecular formula of C6H12O2 are shown below. 1. Name the compound in the textbox below. 2. Draw a possible structure for this compound. 1Η NMR 2H 2H 2H 3HPPM 3H 13C NMR 220 200 100 140 100 120 PPM5) For the following questions draw the structure of the compound based off of the molecular formula and NMR that is given. a) C9H20 b) C10H12O2 brs, 1H t, 12H 9.8H PPM 1,3H d, 2H d, 2H 1q.2H 1,2H Draw the structure of the compound. C₂H20 Draw the structure of the compound. C₁0H1202 PPM c) CH10O3 (compound contains two functional groups with carbonyls) Don't worry about stereochemistry of the product. s, 1H d) CsH8O3 brs, 1H 10 9.1H dt, 1H PPM J=17 Hz DOM 9.2H d, 3H 1,3H Draw the structure of the compound. C7H1003 1,2H Draw the structure of the compound. brs, 1H d, 1H dt, 2H 0 C₂H₂O₂
- 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 1.0Please determine the structure based on the given molecular formula and NMR data. C,H9CI 'H NMR (of compound 1) d 4.1 mult 1H d 2.4 dt d 2.1 t Dt = doublet of triplets (complex splitting) 2H (( = 3,7 Hz) 1H (J = 3 Hz) 2H (J = 7 Hz) d 1.8 m d 1.4 d знWhich of the following structures is in agreement with the 'H NMR spectrum shown below? 3H 3H 2H singlet 2H triplet triplet sextet 1 PPM A) H B) C) D) ОН