Solving combined spectroscopy problems tutorial

SOLVING COMBINED SPECTROSCOPY PROBLEMS:


Introduction:
The structure of an unknown molecule can be determined using three methods, which
each reveal different aspects of the whole:
o Mass Spectrometry  indicates formula (by varying the magnetic field to
manipulate the flight path of ions and plotting the number of ions recorded)
o Infrared (IR) Spectroscopy  indicates presence/absence of functional groups
(using the principle that similar functional groups absorb photons of similar
energies)
o Nuclear Magnetic Resonance (NMR) Spectroscopy  indicates how atoms are
attached to give the “structural skeleton” (by using differences in nuclear spin flip
energies)



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