Figure 4
(a) The dimer structure of (I), mediated by N12—H12A⋯O2i and N12—H12⋯O1 hydrogen bonds (thin lines) [symmetry code: (i) −x + 2, −y + 1, −z]. (b) The formation of a one-dimensional chain by O1W—H1W⋯N13ii and O1W—H2W⋯O2iii hydrogen bonds (thin lines) between dimeric entities [symmetry codes: (ii) x − 1, y, z; (iii) −x + 1, −y + 1, −z]. |