Table 2. Hydrogen-bond geometry (Å, °) for 2 .

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C1—H1⋯O2i	0.98	2.39	3.365 (3)	173
C4—H4A⋯O4ii	0.97	2.29	3.185 (4)	153
C8—H8⋯O3iii	0.93	2.51	3.378 (5)	155

Symmetry codes: (i) ; (ii) ; (iii) .