Essential Organic Chemistry (3rd Edition)
3rd Edition
ISBN: 9780321937711
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 10.13, Problem 18P
Interpretation Introduction
Interpretation:
The absorption occurred at larger wavenumber, the carbonyl group bonded to
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Students have asked these similar questions
Why do aldehydes, esters, and amides all have a strong absorption in the
1630-1780 cm1 region of their IR spectra?
A) The bond between H and the sp³-hybridized C in these functional groups
vibrates in this energy range.
B) Each of these functional groups has at least two resonance structures, and
the different vibrations of the resonance structures give off energy in this
region.
C) The bond between O and the sp²-hybridized C in these functional groups
vibrates at a frequency in this energy range.
D) Light at this wavenumber causes the average C to O bond length to increase
which causes more of this light to be transmitted.
E) An electron in the bond of these functional groups gets excited to the *
orbital.
Which of the following is not true regarding infrared spectroscopy?
wavenumbers units are inverse centimeters (cm-¹)
a stronger bond will have a higher wavenumber stretch
conjugated carbonyls have a lower wavenumber stretch
A larger bond dipole will lead to a lower intensity IR absorption
Which shows an O¬H stretch at a larger wavenumber: ethanol dissolved in carbon disulfide or an undiluted sample of ethanol?
Chapter 10 Solutions
Essential Organic Chemistry (3rd Edition)
Ch. 10.1 - Prob. 1PCh. 10.2 - What would distinguish the mass spectrum of...Ch. 10.2 - Prob. 3PCh. 10.3 - Prob. 5PCh. 10.3 - Suggest possible molecular formulas for a compound...Ch. 10.3 - Prob. 7PCh. 10.4 - Prob. 8PCh. 10.4 - Prob. 9PCh. 10.5 - Prob. 10PCh. 10.5 - Prob. 11P
Ch. 10.6 - Identify the ketone responsible for the mass...Ch. 10.6 - Prob. 13PCh. 10.8 - Prob. 14PCh. 10.8 - Prob. 15PCh. 10.12 - Which will occur at a larger wavenumber: a. a C :...Ch. 10.13 - Which will occur at a larger wavenumber: a. the C...Ch. 10.13 - Prob. 18PCh. 10.13 - Prob. 19PCh. 10.13 - Which will show an O 8 H stretch at a larger...Ch. 10.14 - Prob. 21PCh. 10.14 - Prob. 22PCh. 10.15 - Prob. 23PCh. 10.15 - Prob. 24PCh. 10.17 - Prob. 25PCh. 10.18 - Prob. 26PCh. 10.18 - Prob. 27PCh. 10.19 - Prob. 28PCh. 10.19 - Prob. 29PCh. 10.22 - How many signals would you expect to see in the 1H...Ch. 10.22 - Prob. 31PCh. 10.22 - Prob. 32PCh. 10.23 - Where would you expect to find the 1H NMR signal...Ch. 10.24 - Prob. 34PCh. 10.25 - Prob. 35PCh. 10.25 - Prob. 36PCh. 10.25 - Prob. 37PCh. 10.26 - Prob. 38PCh. 10.26 - Which of the following compounds is responsible...Ch. 10.27 - Prob. 40PCh. 10.27 - Prob. 41PCh. 10.27 - The 1H NMR spectra of two carboxylic acids with...Ch. 10.28 - Prob. 43PCh. 10.28 - Prob. 44PCh. 10.28 - Prob. 45PCh. 10.28 - Describe the 1H NMR spectrum you would expect for...Ch. 10.28 - Identify the compound with molecular formula...Ch. 10.29 - Prob. 48PCh. 10.29 - Prob. 49PCh. 10.29 - Identify the compound with a molecular formula of...Ch. 10 - In the mass spectrum of the following compounds,...Ch. 10 - For each of the following pairs of compounds,...Ch. 10 - Draw the structure of a saturated hydrocarbon that...Ch. 10 - Prob. 54PCh. 10 - Prob. 55PCh. 10 - How could you use UV spectroscopy to distinguish...Ch. 10 - Prob. 57PCh. 10 - Predict the relative intensities of the molecular...Ch. 10 - Prob. 59PCh. 10 - List the following compounds in order from highest...Ch. 10 - How can 1H NMR be used to prove that the addition...Ch. 10 - There are four esters with molecular formula...Ch. 10 - Prob. 63PCh. 10 - Prob. 64PCh. 10 - Each of the IR spectra presented here is...Ch. 10 - Prob. 66PCh. 10 - Five compounds are shown for each of the following...Ch. 10 - Prob. 68PCh. 10 - Prob. 69PCh. 10 - Phenolphthalein is an acidbase indicator. In...Ch. 10 - Which one of the following five compounds produced...Ch. 10 - Prob. 72PCh. 10 - Prob. 73PCh. 10 - Prob. 74PCh. 10 - How could 1H NMR distinguish between the compounds...Ch. 10 - Prob. 76PCh. 10 - Prob. 77PCh. 10 - The 1H NMR spectra of three isomers with molecular...Ch. 10 - The 1H NMR spectra of three isomers with molecular...Ch. 10 - Identify the following compounds. (Relative...Ch. 10 - An alkyl halide reacts with an alkoxide ion to...Ch. 10 - Determine the structure of a compound with...
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- In an IR spectrum, the C-0 stretch for an alcohol (ROH) or an ether (ROR) appears near 1050 cm¯1, but for a carboxylic acid (RCO,H) or an ester (RCO,R), the C-0 stretch appears near 1250 cm-1. Explain why. -1050 cm-1 -1050 cm-1 -1250 cm-1 -1250 cm-1 R R R Rarrow_forwardPlease don't provide handwriting solutionarrow_forward2. Both the compounds shown below contain a carbonyl group but there is slight variation in the wavenumber of the peak as shown below. h f 1720 cm-1 1680 cm-1 Explain the possible reason of this variation.arrow_forward
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