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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1A⋯O2i	0.84	2.06	2.849 (2)	156
O1—H1B⋯O22ii	0.88	2.12	2.990 (2)	170
O2—H2A⋯O21iii	0.86	2.04	2.844 (2)	155
O2—H2B⋯O22	0.86	1.84	2.662 (2)	159
O3—H3A⋯O22	0.83	2.03	2.773 (2)	149
O3—H3B⋯O13iv	0.90	1.87	2.745 (2)	163

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