Question
In: Chemistry
What difference between NMR and FTIR in chemical structure characterization?
What difference between NMR and FTIR in chemical structure characterization?
Solutions
Expert Solution
FTIR stands for Fourier transform infrared spectroscopy.
It provides the spectra with patterns.
This patterns provide structural information like functional groups present in the given molecule.
NMR nuclear magnetic resonance spectroscopy ,
when nuclei are placed in magnetic field ,their magnetic moment becomes aligned in the external magnetic field.
NMR uses radio frequency to deflect the nuclei.
When, the energy is removed, the nuclei emit some radio frequency.
This emitted radiation is converted into spectrum.
In NMR each nuclei is in different chemical environment and based on the chemical structure the spectrum is obtained.
1H-NMR and C- NMR describe the number of Hydrogen atoms and number of carbon atoms in the given molecule respectively.
1H-1H spectroscopy describes the correlation between the hydrogens present in the given molecule.
Other nuclei may also be explored from 31P, 19F and 15N spectroscopies.
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