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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H11W⋯O71i	0.90 (2)	2.02 (2)	2.9161 (16)	176 (2)
O1W—H12W⋯O31ii	0.93 (2)	1.77 (2)	2.6792 (16)	168 (2)
N31—H31A⋯O31ii	0.94 (2)	1.87 (2)	2.7712 (17)	161 (2)
N31—H31B⋯O71iii	0.91 (2)	2.29 (2)	3.1261 (17)	153.0 (15)
N31—H31B⋯O72iii	0.91 (2)	2.27 (2)	3.0720 (17)	147.6 (15)
N31—H31C⋯O32iv	0.874 (18)	1.925 (17)	2.7769 (16)	164.4 (17)
O72—H72⋯O1W	0.94 (3)	1.60 (3)	2.5282 (16)	174 (3)

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