Figure 1
The extended asymmetric unit in I showing the atom-labeling scheme with displacement ellipsoids drawn at the 30% probability level. C-bound H atoms are omitted for clarity. Only the major occupancy components of disordered NMP molecules are shown. Symmetry codes: (i) −x + , −y + 1, z + ; (ii) x + , −y + , −z + 1; (iii) −x + , −y + 1, z − ; (iv) x − , −y + , −z + 1. |