Table 4. Hydrogen-bond geometry (Å, °) for (IV) .

Cg3 is the centroids of the C11–C16 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H21⋯O4i	0.89 (2)	1.93 (2)	2.811 (3)	167 (4)
N2—H22⋯O3ii	0.91 (2)	1.81 (2)	2.717 (3)	177 (4)
C3—H3⋯O1iii	0.93	2.54	3.427 (4)	161
C9—H9A⋯O5iv	0.97	2.31	3.113 (3)	140
O5—H1W⋯O4i	0.84 (2)	1.92 (2)	2.756 (3)	171 (4)
O5—H2W⋯O3	0.85 (2)	1.94 (2)	2.772 (3)	164 (4)
C6—H6⋯Cg3v	0.93	2.93	3.590 (3)	129

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