Organic Chemistry As a Second Language: Second Semester Topics
4th Edition
ISBN: 9781119110651
Author: David R. Klein
Publisher: WILEY
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Chapter 2.4, Problem 2.8P
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Compound 1 has molecular formula C6H12. It shows three signals in the 1H-NMR spectrum, one at 0.96 ppm, one at 2.03 ppm, and one at 5.33 ppm. The relative integrals of these three signals are 3, 2, and 1, respectively.
Compound 2 has molecular formula C7H15Br. It shows two signals in the 1H-NMR spectrum, one at 1.08 ppm and one at 1.59 ppm. The relative integrals of these two signals are 3 and 2, respectively.
Propose structures for compounds 1 and 2, explaining how you reach your conclusion.
Compound 1 has molecular formula C7H16. It shows three signals in the 1H-NMR spectrum, one at 0.85 ppm, one at 1.02 ppm, and one at 1.62 ppm. The relative integrals of these three signals are 6, 1, and 1, respectively.
Compound 2 has molecular formula C7H14. It shows three signals in the 1H-NMR spectrum, one at 0.98 ppm, one at 1.36 ppm, and one at 1.55 ppm. The relative integrals of these three signals are 3, 2, and 2, respectively.
Propose structures for compounds 1 and 2, explaining how you reach your conclusion.
Calculate the degree of unsaturation (DU) for a molecule with the
formula of C₂H, O.
10
Chapter 2 Solutions
Organic Chemistry As a Second Language: Second Semester Topics
Ch. 2.3 - For each of the following compounds, determine...Ch. 2.3 - For each of the following compounds, determine...Ch. 2.3 - For each of the following compounds, determine...Ch. 2.3 - For each of the following compounds, determine...Ch. 2.3 - The following compound has three carbonyl groups....Ch. 2.4 - Predict which of the following C=C bonds will...Ch. 2.4 - The C=C bond in the following compound produces an...Ch. 2.5 - For each IR spectrum below, identify whether it is...Ch. 2.5 - For each IR spectrum below, identify whether it is...Ch. 2.5 - For each IR spectrum below, identify whether it is...
Ch. 2.5 - For each IR spectrum below, identify whether it is...Ch. 2.5 - For each IR spectrum below, identify whether it is...Ch. 2.5 - For each IR spectrum below, determine whether it...Ch. 2.5 - For each IR spectrum below, determine whether it...Ch. 2.5 - For each IR spectrum below, determine whether it...Ch. 2.5 - For each IR spectrum below, determine whether it...Ch. 2.5 - For each IR spectrum below, determine whether it...Ch. 2.5 - For each IR spectrum below, determine whether it...Ch. 2.5 - For each IR spectrum below, determine whether it...Ch. 2.6 - Prob. 2.22P
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- 1Compound 1 has molecular formula C7H16. It shows three signals in the 1H-NMR spectrum, one at 0.85 ppm, one at 1.02 ppm, and one at 1.62 ppm. The relative integrals of these three signals are 6, 1, and 1, respectively. Compound 2 has molecular formula C7H14. It shows three signals in the 1H-NMR spectrum, one at 0.98 ppm, one at 1.36 ppm, and one at 1.55 ppm. The relative integrals of these three signals are 3, 2, and 2, respectively. Propose structures for compounds 1 and 2, explaining how you reach your conclusion.arrow_forwardwhich of the following compounds absorb the radiation at longer wave length, Why ? 1- H;C-CH CH-CH=CH-CH3 2- H,C CH CH-CH=CH-C-CH3arrow_forwardThe following molecule will give two signals in the proton (¹H) NMR. H₂C What is the ratio of the signal intensities for the two peaks? 2:2 O 3:1 3:2 CH₂ O 2:1arrow_forward
- Analyze the following proton NMR spectrum for a compound with the chemical structure C10H12O2. Draw the structure of the compound.arrow_forwardAnalyze the following proton NMR spectrum for a compound with the chemical structure C10H12O2. Draw the structure of the compound.arrow_forwardA ¹H NMR spectrum is shown for a molecule with the molecular formula of C9H10O2. Draw the structure that best fits this data. 1H 11 10 9 8 SH 7 4 214 21 1 pom Qarrow_forward
- Which of the following compounds will show intense signals in 2250CM^-1 and why? OH H3C- H3C- EN -CH3 H3C H3Carrow_forwardThe number of unique carbons in a molecule will correspond to the number of signals in the ¹³C NMR spectrum. Identify the number of unique carbons in this structure. Br Br 1 4 7 +/- unique carbons 8 . 6 9 0 X C x 100 +arrow_forwardFor the following compound how many different signals would you see in the carbon NMR? (Assume that you can see them all.) 4 O 5 O 3 09 CO |arrow_forward
- 4) Draw the compound with molecular formula C9H100 that produces the following signals. Show your work by labeling your structure (Ha, Hb, etc.): 1H NMR a) 9.8 ppm, singlet, 1 H b) 7.3-7.6 ppm, multiplet (overlapping signals), 5 H c) 3.2 ppm, triplet, 2 H d) 2.8 ppm, triplet, 2H 13C NMR: 201.5, 140.7, 128.6, 128.5, 126.4, 45.2, 25.1 ppmarrow_forwardWhat information can proton nuclear magnetic resonance spectroscopy (1H NMR) tell you about an unknown's structure? What information can't it give you? Give only one example for each question.arrow_forwardThe number of unique protons in a molecule will correspond to the number of signals in the ¹H NMR spectrum. Identify the number of unique protons in this structure. 1 7 +/- unique protons 2 8 . 3 6 9 0 X C x 100arrow_forward
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