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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O6—H6B⋯O5iii	0.87	2.08	2.893 (14)	157
O6—H6A⋯O1iv	0.85	1.99	2.781 (13)	156
O5—H5B⋯O6i	0.87	2.19	2.919 (15)	141
O5—H5A⋯O2ii	0.84	2.01	2.810 (14)	159

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