HETCOR technique

It is possible to separate and assign the H signals of the PPs using 2D HETCOR spectra, because the correlations are clearly resolved in the two-dimensional spectra for proton-carbon pairs. The 2D HETCOR technique allows resolution of H CRAMPS to be tied to the higher resolution associated with - C chemical shifts. - ... 

Thus, the 2D HETCOR technique allows the resolution of H CRAMPS to be tied to the higher resolution associated with C chemical shifts. However,... 

Of the many types of two-dimensional experiments, two find the most frequent application. One of these is H—H Correlation Spectroscopy, better known by its acronym, COSY. In a COSY experiment, the chemical shift range of the proton spectrum is plotted on both axes. The second important technique is Heteronuclear Correlation Spectroscopy, better known as the HETCOR technique. In a HETCOR experiment, the chemical shift range of the proton spectrum is plotted on one axis, while the chemical shift range of the C spectrum for the same sample is plotted on the second axis. 

Methyl-2-Pentanol. Figure 10.17 is a final example that illustrates some of the power of the HETCOR technique for 4-methyl-2-pentanol. Lines have been drawn on the spectrum to help you find the correlations. 

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