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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1A—H1A⋯O1W	0.85 (5)	1.82 (5)	2.663 (5)	170 (5)
O1W—H11W⋯O21	0.79 (5)	2.02 (5)	2.793 (4)	168 (5)
O1W—H12W⋯O11i	0.78 (5)	2.03 (5)	2.806 (4)	170 (4)
O21—H21⋯O12	1.00 (6)	1.38 (6)	2.376 (4)	180 (8)

Symmetry code: (i) .