|Chapter 13: Spectroscopy|
Good problem solving skills are often based on
a good method of attack. Here is some general advice of how to go about determining
structures from spectral data, be it from real spectra of an experimental sample,
or in the context of a question. The order of events here works towards
using the H-NMR at the last stage since it is potentially the most useful for
"assembling" the structure.
However, at each stage it is a good idea to use information in other spectra (if available) to seek support your interpretation or address any doubts. Try to get a molecular formula at the earliest possible opportunity and then calculate the index of hydrogen deficiency (IHD).
|Having completed an analysis of the available spectra,
Once you think you have the answer, check it with the H-NMR very carefully... it is probably the most critical test to pass.
|© Dr. Ian Hunt, Department of Chemistry|