Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Chapter 9, Problem 21P
How many
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Predict the number of signals in a proton-decoupled 13C-NMR spectrum of each compound
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Chapter 9 Solutions
Organic Chemistry
Ch. 9 - Prob. 1PPCh. 9 - PRACTICE PROBLEM 9.2 What compound with molecular...Ch. 9 - PRACTICE PROBLEM 9.3
Using the method of Section...Ch. 9 - PRACTICE PROBLEM 9.4 How many signals would each...Ch. 9 - Prob. 5PPCh. 9 - Prob. 6PPCh. 9 - PRACTICE PROBLEM 9.7
The relative chemical shifts...Ch. 9 - Prob. 8PPCh. 9 - PRACTICE PROBLEM 9.9 Propose a structure for...Ch. 9 - PRACTICE PROBLEM 9.10
What is the dihedral angle...
Ch. 9 - PRACTICE PROBLEM 9.11 Draw the most stable chair...Ch. 9 - Prob. 12PPCh. 9 - PRACTICE PROBLEM 9.13 How many signals would you...Ch. 9 - Prob. 14PPCh. 9 - Prob. 15PPCh. 9 - Prob. 16PPCh. 9 - Prob. 17PPCh. 9 - PRACTICE PROBLEM 9.18
What are the expected ratios...Ch. 9 - Prob. 19PPCh. 9 - How many 1H NMR signals (not peaks) would you...Ch. 9 - How many 13C NMR signals would you predict for...Ch. 9 - Prob. 22PCh. 9 - Prob. 23PCh. 9 - Prob. 24PCh. 9 - Compound Q has the molecular formula C7H8. The...Ch. 9 - 9.26 Explain in detail how you would distinguish...Ch. 9 - Compound S (C8H16) reacts with one mole of bromine...Ch. 9 - A compound with molecular formula C4H8O has a...Ch. 9 - In the mass spectrum of 2, 6-dimethyl-4-heptanol...Ch. 9 - Prob. 30PCh. 9 - What are the masses and structures of the ions...Ch. 9 - Prob. 32PCh. 9 - Ethyl bromide and methoxybenzene (shown below)...Ch. 9 - 9.34 The homologous series of primary amines, ,...Ch. 9 - Propose a structure that is consistent with each...Ch. 9 - 9.36 Propose structures for compounds E and F....Ch. 9 - 9.37 Use the NMR and IR data below to propose a...Ch. 9 - 9.38 When dissolved in , a compound (K) with the...Ch. 9 - Compound T (C5H8O) has a strong IR absorption band...Ch. 9 - Prob. 40PCh. 9 - Deduce the structure of the compound that gives...Ch. 9 - Deduce the structure of the compound that gives...Ch. 9 - The 1H NMR spectrum of a solution of 1,...Ch. 9 - Acetic acid has a mass spectrum showing a...Ch. 9 - The 1H NMR peak for the hydroxyl proton of...Ch. 9 - The 1H NMR study of DMF (N, N-dimethylformamide)...Ch. 9 - 9.48 The mass spectra of many benzene derivatives...Ch. 9 - Prob. 49PCh. 9 - 1. Given the following information, elucidate the...Ch. 9 - Two compounds with the molecular formula C5H10O...
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- Following are two constitutional isomers with the molecular formula C4H8O2. (a) Predict the number of signals in the 1H-NMR spectrum of each isomer. (b) Predict the ratio of areas of the signals in each spectrum. (c) Show how you can distinguish between these isomers on the basis of chemical shift.arrow_forwardFollowing are three compounds with the molecular formula C4H8O2 and three 1H-NMR spectra. Assign each compound its correct spectrum and assign all signals to their corresponding hydrogens. (1) (2) (3)arrow_forwardPredict the approximate chemical shift of the indicated peaks in the C-NMR spectrum.arrow_forward
- Which compound gives a signal in the 1H-NMR spectrum with a larger chemical shift, furan or cyclopentadiene? Explain.arrow_forwardHow many signals are present in the 1H NMR spectrum for each molecule? What splitting is observed in each signal?arrow_forward06) Answer the following questions for each of the substances: a) How many signals appear in the 13C NMR spectrum? b) Which signal is at the lowest frequency?arrow_forward
- Where would the chemical shift be expected for # 3 in 1H-NMR?arrow_forwardDetermining the Number of Lines in a 13C NMR Spectrum How many lines are observed in the 13C NMR spectrum of each compound?arrow_forwardPlease help identify all the peaks of the NMR spectrum and the assignments of the compound, 1-(2-naphthyl)ethanolarrow_forward
- Identify the peaks and structure of C10H20O. There are 10 unique carbons in the structure according to the C-NMRarrow_forwardEstimate the chemical shift expected "iii" in the H-NMR spectrum of the molecule shown below.arrow_forwardExplain the relation of chemical shifts to the formula and NMR data given? There is a singlet at 2.4 and 2.58. Triplet at 3.7 and 4.1, Multiplet at 7.3 and 7.8arrow_forward
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