SEARCH Articles Figures Tables HMBC HMBC correlations HMBC/GHMBC heteronuclear shift correlation Heteronuclear Multiple-Bond Correlation, Selective (HMBCS) Heteronuclear correlations Heteronuclear multiple bond correlation HMBC) Heteronuclear multiple bond correlation HMBC) spectroscopy Long-Range Heteronuclear Chemical Shift Correlation - HMBC Understanding the Heteronuclear Multiple-Bond Correlation (HMBC) Pulse Sequence