Hydrogen Bonds between Acidic Protons from Alkynes (C–H···O) and Amides (N–H···O) and Carbonyl Oxygen Atoms as Acceptor Partners

Figure 3

Plot of seven columns viewed along 𝑎 axis, showing all the hydrogen bonds as dotted lines (NH⋯O=C (amide) inside column and (alkyne) CH⋯O=C (carbamate) between columns).