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

Cg1 represents the centroid of the C1–C6 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C10—H10B⋯O1i	0.98	2.57	3.5215 (19)	163
C8—H8B⋯Cg1ii	0.98	2.76	3.445 (2)	127

Symmetry codes: (i) ; (ii) .