Selected hydrogen bond geometry parameters (Å, °) for 8.

D–H⋯A	D–H	H⋯A	D⋯A	D–H⋯A
N5–H5⋯O7a	0.89 (6)	2.02 (6)	2.883 (7)	162 (6)
N6–H6A⋯Cl2b	0.85 (6)	2.56 (6)	3.334 (6)	152 (5)
N6–H6B⋯O10Ba	0.90 (7)	2.04 (7)	2.933 (14)	169 (6)
N15–H15⋯O1c	0.81 (6)	2.11 (6)	2.878 (6)	158 (5)
N16–H16A⋯Cl2b	0.93 (5)	2.64 (5)	3.367 (6)	136 (4)
N16–H16B⋯O5	0.81 (6)	2.12 (6)	2.910 (7)	166 (5)
O5–H5A⋯Cl2	0.99 (6)	2.19 (6)	3.172 (6)	172 (5)
N14–H14⋯O3d	0.81 (7)	1.97 (7)	2.761 (5)	164 (7)
O5–H5B⋯O11c	0.99 (2)	2.50 (14)	3.416 (9)	154 (25)

^a−x + 1, y + 1/2, −z + 3/2.

^b−x, −y + 1, −z + 2.

^c x − 1, y, z.

^d−x, −y + 1, −z + 1.