Figure 7
Molecular structure of (2) [ORTEPII (Johnson, 1976), 30% probability level ellipsoids] with the atom numbering (according to Chemical Abstracts) and C4, N4 disordered atoms (population parameter = 0.5 for each atom); symmetry codes: (a) −x, y, 2 − z; (b) −x, −y, 2 − z; (c) x, −y, z. |