Heteronuclear Multiple Quantum Coherence (and HSQC and Het-Cor) detect correlations between nuclei of two different types that are separated by one bond. In typical H-C HMQC, a 13 C spectrum is displa...Heteronuclear Multiple Quantum Coherence (and HSQC and Het-Cor) detect correlations between nuclei of two different types that are separated by one bond. In typical H-C HMQC, a 13 C spectrum is displayed on f2 axis and a 1 H spectrum on the f1 axis. “Cross-peaks” show which hydrogens are attached to which carbons. Typical tables show a letter assignment, the carbon shift, and then the shift of the hydrogen attached to that carbon.
