Figure 3
The hydrogen-bonding pattern in the structure of (I). Hydrogen bonds are shown as dashed lines. H atoms bonded to C atoms have been omitted for clarity. The two first-level C(6) chains (grey), and the conspicuous second-level C22(4) chain (blue in the electronic version of the paper) and R33(10) ring (red) motifs, have been highlighted. Generic atom labels have been used. |