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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C11—H11⋯Se1ii	0.95	3.09	3.895 (3)	144
C11—H11⋯N1i	0.95	2.67	3.173 (4)	114
C12—H12⋯Se1iii	0.95	3.11	3.972 (3)	151
C15—H15⋯N1	0.95	2.60	3.074 (4)	111
C21—H21⋯N1	0.95	2.54	3.061 (4)	115
C22—H22⋯Se1iv	0.95	3.13	4.022 (3)	157
C25—H25⋯Se1ii	0.95	3.00	3.725 (3)	134
C25—H25⋯N1i	0.95	2.55	3.103 (4)	118

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