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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O1A	0.86 (1)	1.92 (1)	2.7445 (16)	160 (2)
O1A—H1A⋯O1i	0.86 (1)	1.91 (1)	2.7599 (16)	170 (2)

Symmetry code: (i) .