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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1A⋯N2	0.84	2.43	3.017 (3)	127
O1—H1B⋯N7ii	0.84	2.00	2.837 (3)	173
C1—H1⋯N6iii	0.95	2.37	3.293 (3)	163
C5—H5⋯N8iv	0.95	2.56	3.356 (3)	142
C7—H7⋯N6iii	0.95	2.46	3.373 (3)	162
C9—H9⋯Se1iv	0.95	2.96	3.877 (3)	164

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