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(a) Compound A has molecular formula C5H10O. It shows three signals in the 1H-NMR spectrum - a doublet of integral 6 at 1.1 ppm, a singlet of integral 3 at 2.14 ppm, and a quintet of integral 1 at 2.58 ppm. Suggest a structure for A and explain your reasoning.
(b) Compound B has molecular formula C8H6O2. The IR, 1H-NMR, and 13C-NMR spectra are shown below, they are also downloadable for closer inspection by clicking the link under the spectral data. Suggest a structure for B and explain your reasoning.
(c) Compound C has molecular formula C5H8O. The IR, mass, 1H-NMR, and 13C-NMR spectra are shown below, they are also downloadable for closer inspection by clicking the link under the spectral data. Suggest a structure for C and explain your reasoning.
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Wavenumber (cm-1)
19.4
65.7
22,7
144.0
COMPOUND C
100.7
13C-NMR spectrum
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1H-NMR spectrum
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Mass spectrum
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69
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41
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1238
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COMPOUNDB
IR spectrum
10-
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Wavenumber (cm-1)
|130.0
COMPOUND B
13C-NMR spectrum
191.4
139.9
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1H-NMR spectrum
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COMPOUND C
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IR spectrum
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Transmittance
Transmittance
1450"
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- Which compound will give a broad and intense band at 3100 cm-¹ in its IR spectra? (a) Pentane (c) Pentanol Pentanone Propyl ethanoatearrow_forward(a) Compound A has molecular formula C5H10O. It shows three signals in the 1H-NMR spectrum - a doublet of integral 6 at 1.1 ppm, a singlet of integral 3 at 2.14 ppm, and a quintet of integral 1 at 2.58 ppm. Suggest a structure for A and explain your reasoning. (b) Compound B has molecular formula C8H6O2. The IR, 1H-NMR, and 13C-NMR spectra are shown below, they are also downloadable for closer inspection by clicking the link under the spectral data. Suggest a structure for B and explain your reasoning. (c) Compound C has molecular formula C5H8O. The IR, mass, 1H-NMR, and 13C-NMR spectra are shown below, they are also downloadable for closer inspection by clicking the link under the spectral data. Suggest a structure for C and explain your reasoning.arrow_forwardIII) Can 1H NMR spectroscopy be used to differentiate between the two compounds? Briefly explain why or why not. Predict the 1H NMR spectrum for each compound (include integration, multiplicity, and approximate chemical shift). For each set, be sure that you put them in a data table format!arrow_forward
- (c) Each of the following compounds below are characterized by a 'H NMR spectrum that consists of only a single peak having the chemical shift indicated. Identify and draw a bond-line structure for each compound, respectively.. (i) C2H3Cl3-at ~ 2.7 ppm (ii) C5H10-at 1.5 ppmarrow_forwardPlease don't provide handwritten solution ......arrow_forwardUse the NMR tables & to predict the range (ppm) where each compound should absorb.arrow_forward
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