Table 2. Hydrogen-bond geometry (Å, °) for 4 .

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C2—H2B⋯Cl2	0.98	2.58	3.488 (5)	154
C3—H3A⋯O1	0.98	2.31	2.892 (7)	117
C3—H3B⋯Cl2i	0.98	2.83	3.456 (5)	122

Symmetry code: (i) .