Supporting Information

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Supporting Figure 6
Supporting Figure 7
Supporting Figure 8
Supporting Figure 9
Supporting Figure 10
Supporting Figure 11
Supporting Figure 12
Supporting Table 1

Fig. 6. ¹H NMR assignment of encapsulated 4-ethynylbiphenyl (4a) in 2.2.

Fig. 7. ¹H NMR assignment of encapsulated 4-ethynyl-4'-ethylbiphenyl (4b) in 2.2.

Fig. 8. ¹H NMR assignment of encapsulated 4,4'-diethynylbiphenyl (4c) in 2.2.

Fig. 9. ¹H NMR assignment of encapsulated 4-ethynyl-4'-propylbiphenyl (4d) in 2.2.

Fig. 10. ¹H NMR assignment of encapsulated 4-ethynyl-4'-tert-butylbiphenyl (4e) in 2.2.

Fig. 11. ¹H NMR assignment of encapsulated 4-ethynyl-4'-n-butylbiphenyl (4f) in 2.2.

Fig. 12. Nucleus-independent chemical shift (NICS) values for inner space of 2.2 with a spacing distance of 1 Å at GIAO-B3LYP/6-31G*.