Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Textbook Question
Chapter 14.12, Problem 24P
Explain the relative chemical shifts of the benzene ring protons in Figure 14.18.
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Chapter 14 Solutions
Organic Chemistry (8th Edition)
Ch. 14.1 - Prob. 1PCh. 14.1 - Prob. 2PCh. 14.4 - How many signals would you expect to see in the 1H...Ch. 14.4 - How many signals would you expect to see in the 1H...Ch. 14.4 - How could you distinguish the 1H NMR spectra of...Ch. 14.4 - Draw an isomer of dichlorocyclopropane that gives...Ch. 14.5 - Prob. 7PCh. 14.5 - Prob. 8PCh. 14.5 - Prob. 9PCh. 14.5 - Where would you expect to find the 1H NMR signal...
Ch. 14.6 - Prob. 11PCh. 14.7 - Prob. 12PCh. 14.7 - Prob. 13PCh. 14.7 - Without referring to Table 14.1, label the proton...Ch. 14.8 - [18]-Annulene shows two signals in its 1H NMR...Ch. 14.9 - How would integration distinguish the 1H NMR...Ch. 14.9 - Which of the following compounds is responsible...Ch. 14.10 - Prob. 19PCh. 14.10 - Explain how the following compounds, each with the...Ch. 14.10 - The 1H NMR spectra of two carboxylic acids with...Ch. 14.11 - Draw a diagram like the one shown in Figure 14.12...Ch. 14.12 - Indicate the number of signals and the...Ch. 14.12 - Explain the relative chemical shifts of the...Ch. 14.12 - How can their 1H NMR spectra distinguish the...Ch. 14.12 - Identify each compound from its molecular formula...Ch. 14.12 - Predict the splitting patterns for the signals...Ch. 14.12 - Describe the 1H NMR spectrum you would expect for...Ch. 14.12 - Propose structures that are consistent with the...Ch. 14.13 - Prob. 30PCh. 14.13 - Identify the compound with molecular formula...Ch. 14.14 - Prob. 32PCh. 14.15 - a. For the following compounds, which pairs of...Ch. 14.15 - How would the 1H NMR spectra for the four...Ch. 14.17 - Explain why the chemical shift of the OH proton of...Ch. 14.17 - Prob. 38PCh. 14.17 - Prob. 39PCh. 14.17 - Prob. 40PCh. 14.20 - Answer the following questions for each compound:...Ch. 14.20 - Prob. 42PCh. 14.20 - How can 1,2-, 1,3-, and 1,4-dinitrobenzene be...Ch. 14.20 - Identify each compound below from its molecular...Ch. 14.22 - Prob. 45PCh. 14.22 - What does cross peak X in Figure 14.34 tell you?Ch. 14 - Prob. 47PCh. 14 - Draw a spitting diagram for the Hb proton and give...Ch. 14 - Label each set of chemically equivalent protons,...Ch. 14 - Determine the ratios of the chemically...Ch. 14 - How can 1H NMR distinguish between the compounds...Ch. 14 - Prob. 52PCh. 14 - Match each of the 1H NMR spectra with one of the...Ch. 14 - The 1H NMR spectra of three isomers with molecular...Ch. 14 - Prob. 55PCh. 14 - Prob. 56PCh. 14 - Compound A, with molecular formula C4H9Cl, shows...Ch. 14 - Would it be better to use 1H NMR or 13C NMR...Ch. 14 - There are four esters with molecular formula...Ch. 14 - Identify the compound with molecular formula C6H14...Ch. 14 - An alkyl halide reacts with an alkoxide ion to...Ch. 14 - The 1H NMR spectra of three isomers with molecular...Ch. 14 - Identity each of the following compounds from its...Ch. 14 - Identity each of the following compounds from its...Ch. 14 - Prob. 65PCh. 14 - How can the signals in the 6.5 to 8.1 ppm region...Ch. 14 - The 1H NMR spectra of two compounds, each with...Ch. 14 - Draw a splitting diagram for the Hb proton if Jbc...Ch. 14 - Sketch the following spectra that would be...Ch. 14 - How can 1H NMR be used to prove that the addition...Ch. 14 - Identity each of the following compounds from its...Ch. 14 - Dr. N. M. Arr was called in to help analyze the 1H...Ch. 14 - Calculate the amount of energy (in calories)...Ch. 14 - The following 1H NMR spectra are four compounds,...Ch. 14 - When compound A (C5H12O) is treated with HBr, it...Ch. 14 - Identity the compound with molecular formula...Ch. 14 - Identity each of the following compounds from its...Ch. 14 - Prob. 78PCh. 14 - Identify each of the following compounds from its...
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- 4. Identify the different types of carbons and predict their approximate chemical shift. (See Figure 13-18.) CI CI CI. CI CI CIarrow_forwardA. Match the following IR spectra with their respective molecules methyl chloride (CH3Cl),methyl bromide (CH3Br), and methyl iodide (CH3I). Explain the answerS.B. Indicate the positions of C—H stretch, H—C—H bend, and other major vibrational modes inall spectra.C. Calculate the number of vibrational modes in methyl chloride.arrow_forwardDon't worry about including the J-Values for this assignment. but DO include everything else for NMR spectaarrow_forward
- Each of the two IR spectra are one of the following benzene derivatives: benzaldehyde, benzoic acid, benzyl alcohol, methyl benzoate, and benzamide. What derivative is represented by each graph?arrow_forwardTrue or False: The chemical shift of a particular proton provides information about the electronic/chemical environment of that proton. Could you explain how to do this in detail?arrow_forwardPredict the approximate chemical shifts of the protons in the following compounds. (a) benzene (b) cyclohexanearrow_forward
- Refer to the given HNMR spectra, and determine the structure of the molecule. Corroborate your answer with the FTIR spectrum. Label which hydrogens refer to which chemical shifts.arrow_forward(How do the signals for methyl fluoride look like in the proton and the carbon NMR Spectrum?) Predict the number of lines observed in the proton spectrum. Predict the number of lines observed in the carbon spectrum. Justify your answer for the proton spectrum. Justify your answer for the carbon spectrum.arrow_forward! ( give explanation for chemical shift value and type of proton)arrow_forward
- (How do the signals for methyl fluoride look like in the proton and the carbon NMR Spectrum?) the splitting caused by atoms other than carbon and hydrogen atoms Predict the number of lines observed in the proton spectrum. Predict the number of lines observed in the carbon spectrum. Justify your answer for the proton spectrum. Justify your answer for the carbon spectrum.arrow_forwardWhy is this the correct spectra for these molecules. Identify a specific absorption band which identifies each characteristic functional group of the molecule chosen.arrow_forwardhow do you figure out what to expect an NMR to show about these two molecules?arrow_forward
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