Table 2. Comparison of ring slippage for Group 3 guests which adopt an Ar⋯Ar interaction.

Compound	Ring I	Ring J	Distance between Cg(I) and perpendicular projection of Cg(J) on ring I (Å)
PBA-12-OMe	C1A–C6A	C333–C336	1.340
	C7A–C12A	C306–C308	2.740
	C7A–C12A	C7B–C12B	1.682
BBA-8,12-OMe	C1A–C6A	C1A–C6A	4.360
	C7A–C12A	C7A–C12A	3.457
BBA-8,10,12-OMe	C7B–C12B	C301–C305	3.335
	C7B–C12B	C306–C308	0.999
	C7B–C12B	C314–C314	4.424

Cg(I)/Cg(J) refer to the centre of gravity for rings I and J.