SEARCH Articles Figures Tables Bond correlation Bond-selectivity Bonds selection HMBC HMBC (Heteronuclear Multiple Bond HMBC correlations Heteronuclear 2-bond correlation Heteronuclear Correlation HMBC Heteronuclear correlations Heteronuclear multiple bond correlation HMBC) Heteronuclear multiple bond correlation correlations Heteronuclear multiple-bond Heteronuclear multiple-bond correlation Multiple bond correlations Multiple correlation Multiple heteronuclear Multiplicity selection