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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O3—H3B⋯O1i	0.81 (3)	1.99 (3)	2.739 (4)	152 (4)
O3—H3C⋯O1ii	0.82 (3)	1.97 (3)	2.764 (4)	161 (3)
C1—H1A⋯O1iii	0.93	2.54	3.443 (5)	163
C3—H3A⋯O1iv	0.93	2.50	3.366 (5)	155

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