Fig. 3: Single-crystal X-ray structure of 1.
a Space-filling model view from the S rim with the four butyls omitted for clarity. b Space-filling model view from the O rim. c View of the encapsulated structure of nitrobenzenes in 1 from the top, and (d) side view of the complex with hydrogen bonds highlighted. C‒H···S hydrogen bonds: dS···H (Å), ∠C−H···S (deg), dC···S (Å) −a, 2.91, 129, 3.57; b, 3.00, 168, 3.92; c, 2.97, 165, 3.88; d, 3.03, 135, 3.75. dS···H = atomic distance between S and H, ∠C−H···S = hydrogen bond angle, dC···S = atomic distance between C and S. Color code: S = gold, O = red, N = blue, C = black, H = gray.
