Figure 1
A displacement ellipsoid plot of (I), drawn at the 30% probability level, showing the atom-numbering scheme. Full (empty) ellipsoids represent independent (symmetry-related) atoms. Double (single) broken lines denote conventional (nonconventional) hydrogen bonds. Labels A and B correspond to the R(6) rings defined by the intramolecular N—H⋯O hydrogen bonds. [Symmetry code: (i) −x + 1, −y + 1, −z + 1.] |