The 13C-NMR spectrum of an unknown organic molecule is measured. The spectrum is found to have...
The 13C-NMR spectrum of an unknown organic molecule
is measured. The spectrum is found to have 1 distinct peak(s)
total.
Assuming that each peak corresponds to a different chemical
environment in the molecule, which of the following organic
molecules gave rise to this spectrum?
1- ethene / 1-butyne / 3- diethylamine/ 4- butyl
butanoate
Homework Answers
In ethene molecule, plane of symmetry is present which means
that both the carbon here are in same environment and hence they
are indistinguishable in C13 NMR. So only one peak is
seen in this case. 
Add Answer to:
The 13C-NMR spectrum of an unknown organic molecule
is measured. The spectrum is found to have...
How many unique peaks would you expect to see in a 13C-NMR spectrum of molecule A,...
How many unique peaks would you expect to see in a
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help Integrated Problems 16.78 Do you think 'H NMR or 13C NMR spectroscopy would be more...
help
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The 13C NMR spectra A and B for two molecules, each with a
formula C5H8, are shown below. One of them is for a molecule with
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Must know the unknowns name and structure.
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3b. Analysis of FTIR, NMR Mass spectrum for Organic Unknown Compound. Below is the FTIR, 1H-NMR,...
3b. Analysis of FTIR, NMR Mass spectrum for Organic Unknown Compound. Below is the FTIR, 1H-NMR, 13C-NMR and Mass Spec data for an unknown compound. For each piece of information provided, write in the space below the figure the following for each spectra. What type of information is provided about the compound. Download the spectra (screen print) and mark up the spectra with what the signal represents as you determine the identity of this compound. Take a photo of your...
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How many unique peaks would you expect to see in a
13C-NMR spectrum of molecule A, given
that each unique chemical environment should give rise to a unique
peak?
Molecule A Molecule B Molecule C HN Molecule D Molecule E Molecule F он Molecule G Molecule H Molecule I Molecule J Molecule K Molecule L HN Molecule M Molecule N Molecule o
Below is an NMR spectrum and IR data for an unknown organic molecule (molecular formula C H2O). On your answer sheet: (1) draw the structure of the unknown organic molecule in the box, (2) label the protons that give rise to each signal (label H, H, etc.) on your drawn structure, and (3) identify the functional group in the molecule responsible for each of the two IR signals. IR data: 3000-2850 cm 1, 1710 cm 1 34 B 32 1.7...
help
Integrated Problems 16.78 Do you think 'H NMR or 13C NMR spectroscopy would be more suitable for distinguishing among compounds A, B, and C? Explain. 0 0 m/z 6 For each of the two mass spectra below, determine the formula of a compound that can produce it. 1030000 16.65 1-Chloropropane produced the 13C NMR spectrum shown at right. Match each carbon atom in the molecule to the signal to which it corresponds. 20 150 100 Chemical shift (ppm) 50...
The 13C NMR spectra A and B for two molecules, each with a
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8. Sev eral students take a 1H NMR and 13C NMR spectra for an unknown compound They each propose something about the identity of the unknown. For each argument, determine whether the argument is: (10 pts) MS: No M+2 peak present, the MW is an odd number 13C NMR: 130, 125, 65, 30, 15, 10 H NMR: 5.8 (1H dd) 5.5 1.3(3H, d 1.1 (3, t) A scientific argument is valid if the data and conclusion are both true, and...
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Must know the unknowns name and structure.
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