Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N1	0.82	1.88	2.586 (4)	144
C9—H9⋯O1i	0.93	2.60	3.390 (5)	143

Symmetry code: (i) .