Table 2.

Specification of intermolecular hydrogen bonds observed in the HCH and IBC crystals.

HCH
D─H···A	D─H (Å)	H···A (Å)	Angle (°)	Symmetry
O2A─H2A···O1B	0.820	1.717	148.29	x, y, z
O2B─H2B···O1B	0.818	1.724	148.05	x, y, z
IBC
D─H···A	D─H (Å)	H···A (Å)	Angle (°)	Symmetry
O2─H2···O1	0.819	1.823	146.55	x, y, z
O3─H3···O1	0.820	1.990	157.88	x, y, z