Interpret the IR and NMR spectra for an unknown substance. Label all peaks and protons. Correctly Identify the compound and draw its structure.
The unknown compound may be one of the following:
1,2-dichloropropane 2-chloro-2-methylpropane 1-bromobutane
2-bromobutane 1-bromo-3-methylbutane bromocyclohexane
ethanol 1-propanol 2-propanol
1-butanol 2-butanol 2-methyl-2-propanol
n-pentane 2,2,4-tri-methylpentane toluene
1,2-dimethylbenzene 1,3-dimethylbenzene 1,4-dimethylbenzene
ethylbenzene n-butylbenzene 2-butylbenzene
isobutylbenzene cyclohexene alpha-methylstyrene
IR data
750 cm-1 indicates C-H wag stretch observed in ortho substituted benzene ring
1500 cm-1 indicates C=C stretch
2900 cm-1 indicates aliphatic C-H stretch
1H NMR data:
7.1-7.2 (4H)
2.3 (s, 6H) two equivalent CH3
13C NMR data:
138 ppm presence of quaternary aromatic carbon
130 ppm presence of aromatic carbon
128 ppm presence of aromatic carbon
20 ppm presence of aliphatic carbon
All above data indicates following structure
Interpret the IR and NMR spectra for an unknown substance. Label all peaks and protons. Correctly...
Explain why the IR corresponds to a particular compound of those that are possible based on BP and why it couldn't be any of the others -mention at least 3 IR peaks that are present that correspond to functional groups in your molecule, and discuss specific peaks that were either present or absent that allowed you to rule out the other compounds possible based on the boiling point. Reference your IR spectra as figures. the boiling point for unkown 2:...