Organic Chemistry, Books a la Carte Edition (8th Edition)
8th Edition
ISBN: 9780134074580
Author: Bruice, Paula Yurkanis
Publisher: PEARSON
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Question
Chapter 13, Problem 68P
Interpretation Introduction
Interpretation:
The reason should be explained for the stretching vibration of C-H bonds occur at larger wave number.
Concept introduction:
Wave number
Wave number is the spatial frequency of a wave, measured in cycles per unit distance or radians per unit distance.
Wave number can be calculated by following formula,
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This question pertains to vibrational spectroscopy.
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Chapter 13 Solutions
Organic Chemistry, Books a la Carte Edition (8th Edition)
Ch. 13.1 - Which of the following fragments produced in a...Ch. 13.2 - What distinguishes the mass spectrum of...Ch. 13.2 - What is the most likely m/z value for the base...Ch. 13.3 - Prob. 5PCh. 13.3 - a. Suggest possible molecular formulas for a...Ch. 13.3 - If a compound has a molecular ion with an...Ch. 13.3 - Identify the hydrocarbon that has a molecular ion...Ch. 13.4 - Predict the relative intensities of the molecular...Ch. 13.5 - Which molecular formula has an exact molecular...Ch. 13.5 - Prob. 11P
Ch. 13.6 - Sketch the mass spectrum expected for...Ch. 13.6 - The mass spectra of 1-methoxybutane,...Ch. 13.6 - Primary alcohols have a strong peak at m/z = 31....Ch. 13.6 - Identify the ketones responsible for the mass...Ch. 13.6 - Prob. 16PCh. 13.6 - Using curved arrows, show the principal fragments...Ch. 13.6 - The reaction of (Z)-2-pentene with water and a...Ch. 13.9 - a. Which is higher in energy: electromagnetic...Ch. 13.9 - Prob. 20PCh. 13.13 - Prob. 21PCh. 13.14 - Which occur at a larger wavenumber: a. the C O...Ch. 13.14 - Prob. 23PCh. 13.14 - Prob. 24PCh. 13.14 - Rank the following compounds from highest...Ch. 13.14 - Which shows an O H stretch at a larger...Ch. 13.16 - Prob. 27PCh. 13.16 - a. An oxygen-containing compound shows an...Ch. 13.16 - Prob. 29PCh. 13.16 - For each of the following pair of compounds, name...Ch. 13.17 - Which of the following compounds has a vibration...Ch. 13.17 - Prob. 32PCh. 13.18 - A compound with molecular formula C4H6O gives the...Ch. 13.20 - Prob. 34PCh. 13.20 - Prob. 35PCh. 13.21 - Predict the max of the following compound:Ch. 13.21 - Prob. 37PCh. 13.23 - a. At pH = 7 one of the ions shown here is purple...Ch. 13.23 - Prob. 39PCh. 13.23 - Prob. 40PCh. 13 - In the mass spectrum of the following compounds,...Ch. 13 - Prob. 42PCh. 13 - Draw structures for a saturated hydrocarbon that...Ch. 13 - Rank the following compounds in order of...Ch. 13 - For each of the following pairs of compounds,...Ch. 13 - a. How could you use IR spectroscopy to determine...Ch. 13 - Assuming that the force constant is approximately...Ch. 13 - Norlutin and Enovid are ketones that suppress so...Ch. 13 - In the following boxes, list the types of bonds...Ch. 13 - A mass spectrum shows significant peaks at m/z. =...Ch. 13 - Prob. 51PCh. 13 - Prob. 52PCh. 13 - Prob. 53PCh. 13 - The IR spectrum of a compound with molecular...Ch. 13 - Rank the following compounds from highest...Ch. 13 - Rank the following compounds from highest...Ch. 13 - What peaks in their mass spectra can be used to...Ch. 13 - Prob. 58PCh. 13 - Which one of the following five compounds produced...Ch. 13 - Prob. 60PCh. 13 - Each of the IR spectra shown below is accompanied...Ch. 13 - Prob. 62PCh. 13 - Prob. 63PCh. 13 - How can IR spectroscopy distinguish between...Ch. 13 - Prob. 65PCh. 13 - Prob. 66PCh. 13 - Give approximate wavenumbers for the major...Ch. 13 - Prob. 68PCh. 13 - Which one of the following live compounds produced...Ch. 13 - Phenolphthalein is an acid-base indicator. In...Ch. 13 - Prob. 71PCh. 13 - How can you use UV spectroscopy to distinguish...Ch. 13 - Prob. 73PCh. 13 - The IR and mass spectra for three different...
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Similar questions
- 4. Is the C=O stretching frequency the same for acetone and deuterated acetone? Explain your answer. Identify C O overtone in acetone spectrum which corresponds to the transitionn from ground level n= 0, to the second excited levarrow_forwardexplain the difference in intensities of the vibrational peaks in the spectrum. Why is the center peak the most intense, whereas the peak on the far right is the lease intense?arrow_forwardWhat is the relationship between wavenumber and wavelength and how wavenumber is related to energy? Why stretching frequencies decrease from C−Cl to C−Br to C−I?arrow_forward
- Which has a lower characteristic stretching Frequency, the C=O bond or band C-O bond.arrow_forwardCalculate the energy in KJ/mol associated with the 3.517-μm vibrational absorption bandof an aliphatic ketone.arrow_forwardIf chloroform (trichloromethane) exhibits an infrared peak at 3018cm−1 due to C–H stretching vibration, calculate wavenumber of the absorption band corresponding to C–D stretching vibration in deuterochloroform (experimental value 2253cm−1).arrow_forward
- What is the vibrational wavenumber for carbon dioxide? Explain how you got this answer.arrow_forwardFunctional groups such as anhydride, carboxylate (but not carboxylic acid), nitro, primary amino give two stretching vibrational bands in the infrared spectrum. What is the origin of these two bands ?arrow_forwardWhich is the correct order of increasing wave number of the stretching vibrations of (1) C-O, (2) 0-H (alcohol), (3) C=N and (4) C=C (alkyne)? *arrow_forward
- What would be the wavelength of the Stokes Raman shift if the C-H bond were probed with a 405 nm laser? Sketch the resulting spectra, including Rayleigh scattering – indicate wavelengths on the sketch.arrow_forwardDescribe the basic differences between fundamental vibrations and overtones in IR spectroscopy.arrow_forward
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