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A number of 2D NMR techniques were discussed in class. Give the acronym name for the...

A number of 2D NMR techniques were discussed in class. Give the acronym name for the method that employs both 'H and 13C NMR nuclei
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The HMBC (Heteronuclear Multiple Bond Correlation) experiment gives correlations between carbons and protons that are separated by two, three, and, sometimes in conjugated systems, four bonds. Direct one-bond correlations are suppressed.

Heteronuclear Single Quantum Coherence (HSQC) The resulting spectrum is two-dimensional (2D) with one axis for proton (1H) and the other for a heteronucleus (an atomic nucleus other than a proton), which is usually 13C. The spectrum contains a peak for each unique proton attached to the heteronucleus being considered.

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