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Spectroscopy - The molecular formula for the compound
The molecular formula for the compound.
2. The structure for the compound.
3. Labels for the major peaks written directly on the IR spectrum.
4. Identification of the peaks contained in the 1HNMR spectrum.
5.
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MS, IR, & NMR spectrum of an unknown compound
396052 Finding information on the spectrum of an unknown compound You are given a description and 3 spectrum of an unknown compound and you are asked to identify it based off of the MS, IR, & NMR spectrum. All work must be shown.
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Drawing the Structure of a Compound
33234 Drawing the Structure of a Compound 1. Draw the structure of Compound A based on its formula and proton NMR. The integration of the peaks from left to right is 5:2:1. Compound A, MF C7H8O
2. Draw the structure of Compound B.
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H NMR and C NMR spectra
Near the peaks the numbers are given, which are the integrations, give the number of protons.
Please give a structure for the formula C8H8O, which is consistent with the H NMR spectrum that is below.
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Ester Reduction Questions
Compound B has the molecular formula C5H12O and is optically
inactive. Give the structure for Compounds A and B.
10. Which of the following compounds have a meso form?
2,3-Dibromopentane
2,4-Dibromopentane
2,3-Dibromobutane
11.
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Organic Synthesis : Assigning Structures - Roadmap Problems
A compound A had the formula C10H8, and showed two H NMR peaks (which were both broad multiplets) at 7.70 and 7.86ppm, in the ratio 1:1. When treated with alkaline KMnO4, compound A gave CO2, Water and compound B, which had the formula C8H4O3.
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Infrared and Mass Spectroscopy
68447 Infrared and Mass Spectroscopy 4. Infrared Spectroscopy
(a) Deduce a possible structure for the compound with the following major IR absorptions. Explain your choice based on the IR absorptions, indicating the absorptions on your molecule.
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Ceric Nitrate, Beyer, and Tollens Tests
The 1H NMR spectrum for
Compound A gave the following data:
1.02 ppm 9H, singlet
2.11 ppm 3H, singlet
2.31 ppm 2H, singlet.
Give suitable structures for Compounds A and B.
4.
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Spectrums and Reactions
Based on your analysis of the mass spectrum, what is the molecular formula and structure
of the compound? Give the reason for your answer using data from the spectrum below.