Concept explainers
(a)
To determine: The
Interpretation: The functional group suggested by each spectrum and the specific frequencies that are used are to be stated.
Concept introduction: A method by which structure of compound is determined by the interaction between matter and
(b)
To determine: The functional group suggested by given spectrum and the specific frequencies that are used.
Interpretation: The functional group suggested by each spectrum and the specific frequencies that are used are to be stated.
Concept introduction: A method by which structure of compound is determined by the interaction between matter and electromagnetic radiation is called spectroscopy. A spectroscopic technique in which infrared radiation is used for structural study is called IR spectroscopy.
(c)
To determine: The functional group suggested by given spectrum and the specific frequencies that are used.
Interpretation: The functional group suggested by each spectrum and the specific frequencies that are used are to be stated.
Concept introduction: A method by which structure of compound is determined by the interaction between matter and electromagnetic radiation is called spectroscopy. A spectroscopic technique in which infrared radiation is used for structural study is called IR spectroscopy.
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Organic Chemistry (9th Edition)
- Determine the structure for the molecule that most likely produced these spectra.arrow_forwardBased on the spectra you located, does your molecule have a carbonyl? If so, what functional group is it a part of (carboxylic acid, ketone, aldehyde, ester, amide) and what is the frequency (in wavenumbers) of the absorption peak? If not, what is the approximate frequency range for a carbonyl? Does your molecule have either an –O-H or –N-H bond? If so, what functional group is it a part of (carboxylic acid, alcohol, amine, amide) and what is the frequency (in wavenumbers) of the absorption peak? If not, what are the approximate frequency ranges for an –O-H and an –N-H bond? Does your molecule have either an alkyne or nitrile functional group? If so, which functional group is it and what is the frequency (in wavenumbers) of the absorption peak? If not, what is the approximate frequency range for a triple bond?arrow_forwardShown below is the H-NMR spectra of acetaminophen. Draw the structure and correlate each hydrogen in the molecule with the various peaks in the spectra.arrow_forward
- Q1: Consider the two spectra shown below. One is for 3-methyl-1-cyclopentanone and the other one is for 3-methyl-1-cyclohexanone. Identify which spectra belongs to one compound explain your reasoning. Identify the important absorption peaks correspond to a functional group. Describe the absorption peaks. am 100 4900 400 3000 d 1500 1300 REG ho DEFE 18 PES SAFE RECERES 100arrow_forwardBelow are three MS spectra, Spectra 1, 2, and 3. Each of this mass spectrum corresponds to either Compound A (contains one Cl in the molecular formula), Compound B (one I in the molecular formula), and Compound C (one Br in the molecular formula). Identify which spectra corresponds to which compound. Provide explanations for your choices.arrow_forwardmolecular formula: C5H9N 1. Given the molecular formula, label important peaks on the spectrum and explain how you determined the Structural Formula for your assigned compound.arrow_forward
- Analyze the 1H NMR of 2-phenyl-2-propanol. Based on intensities and splitting patterns, it should be possible to assign all of the peaks in this spectrum. Analyze the 1H NMR of 2-cyclohexyl-2-propanol. In this case, it is not possible to assign all peaks. Indicate which peaks can be assigned to specific H atoms in this compound.arrow_forwardFor each of the ten spectra, you should determine which peaks are the most important for identification purposes, what their wavenumber values are, and what specific bonds and/or functional groups they indicate. Record those in the spaces under each spectrum. You don’t have to use each space. Then, from the list of possible compounds, identify what compound is responsible for each spectrum. Realize that these are all the real samples and there may be impurities present that cause weak peaks which would not normally be caused by the compound, such as the one at 3450 cm-1 in Spectrum 1.arrow_forward1- While cleaning out a laboratory shelf, you have made a mistake in labeling two bottles of ethanol and acetic acid. To identify the molecular structure of the contents of the bottle, samples were submitted for analysis using infrared spectroscopy, based on the IR results, draw the molecular structure of the molecule that would correspond to the spectrum for that compound. Justify vour answer Spectrum A Spectrum B 1000 W er lo Oarrow_forward
- The mass spectra of 1-methoxybutane, 2-methoxybutane, and 2-methoxy-2-methylpropane are shown below. Match each compound with its spectrum.arrow_forward1- While cleaning out a laboratory shelf, you have made a mistake in labeling two bottles of ethanol and acetic acid. To identify the molecular structure of the contents of the bottle, samples were submitted for analysis using infrared spectroscopy, based on the IR results, draw the molecular structure of the molecule that would correspond to the spectrum for that compound. Justify your answer Spectrum A Spectrum B 04 02 3000 2000 Wavenumber iom-1) 1000 Transmitancearrow_forwardConsider the following Proton and Carbon NMR spectra for the same compound, and it contains Chlorine. Decide on a structure which is consistent with the spectral data, and 'assign" both spectra as best as you can. "Assign" = draw structure, label (a,b,c etc) and indicate which peaks belong to which type.arrow_forward
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