HOHAHA

AcronymDefinition
HOHAHAHomonuclear Hartmann-Hahn Spectroscopy (nuclear magnetic resonance technique)
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2D NMR methods, such as heteronuclear multiple-quantum coherence (HMQC) spectroscopy, heteronuclear correlation (HETCOR) spectroscopy, homonuclear Hartmann-Hahn (HOHAHA) spectroscopy, total correlation spectroscopy (TOCSY), rotating frame Overhauser experiment spectroscopy (ROESY), heteronuclear single-quantum coherence (HSQC) spectroscopy, and heteronuclear multiple bond coherence (HMBC) spectroscopy, have been employed in lignin structure characterization [44, 84-86].
Various protons bearing fragments were identified with the help of COSY-45[degrees] and HOHAHA experiments (Figure 2).