Figure 3.

Inter­action energies in crystal structure of (I). (a) A view of inter­actions between a central mol­ecule, shown as its Hirshfeld surface, and 13 mol­ecules that share the inter­action surfaces with the central mol­ecule. Red areas on the Hirshfeld surface encode the closest inter­molecular contacts, which are hydrogen bonds involving the hydrazido groups, a short C—H⋯O type contact is shown as a dotted line; (b) Calculated energies (electrostatic, polarization, dispersion, repulsion, and total) of pairwise inter­actions between the central mol­ecule and those indicated by respective colours.