3.4.1. γ-CD with EFV in the 3:2 Stoichiometry

A solution of γ-CD (213.1 mg, 0.15 mmol) in ultrapure water (1.5 mL) at 40 ◦C was treated with another solution of EFV (31.5 mg, 0.10 mmol) in ethanol (0.2 mL). The mixed solution was stirred for 3 min and then subjected to snap-freezing in liquid nitrogen. Solvents were subsequently removed by freeze-drying to obtain a white solid.

FT-IR: ν(tilde) (cm−<sup>1</sup> ) = 3405 s, 2934 m, 2894 sh, 2254 w, 1751 m, 1647 m, 1502 m, 1456 sh, 1417 m, 1385 m, 1373 m, 1337 m, 1302 m, 1252 m, 1200 m, 1161 s, 1102 sh, 1080 s, 1054 sh, 1027 vs, 1002 s, 944 m, 933 m, 864 w, 830 vw, 760 m, 743 w, 707 m, 693 w, 656 w, 610 w, 585 m, 531 w, 482 w.

<sup>13</sup>C{1H} CP-MAS NMR: δ (ppm) = 147.3 (EFV C1), 134.4 (EFV C3), 133.1 (EFV C6), 130.0 (EFV C7), 128.4 (EFV C14), 126.8 (EFV C8), 118.7 (EFV C5), 114.2 (EFV C4), 103.1 (γ-CD C1), 96.1 (EFV C10), 82.2 (γ-CD C4), 79.3 (EFV C2), 73.0 (γ-CD C2,3,5), 66.0 (EFV C9), 60.7 (γ-CD C6), 8.8, 7.3 (EFV C12,13), −0.3, −0.9, −1.7 (EFV C11) ppm.
