Guest-induced conformational change of 2,5,7,8,9,10-Hexachloro-1,3,4,6-tetrakis-(4-methoxy-phenylsulfanyl)-fluoranthene via CH⋯π, CH⋯Cl and π⋯π interaction

Abstract The title host molecule exhibits remarkable conformational flexibility in its crystalline inclusion clathrates. The alternation in molecular packing modes of this flexible host molecule, between the cyclohexane and benzene clathrates, corresponds to the sizes and shapes of the guests and the weak molecular forces between the host and the guest. The crystals of cyclohexane clathrate are triclinic, space group P 1 ¯ with a  = 10.3996(10), b  = 11.1750(11), c  = 21.694(2) A, α  = 103.628(2)°, β  = 94.885(2)°, γ  = 92.910(2)°, V  = 2434.8(4) A 3 and Z  = 2. The crystals of benzene clathrate are monoclinic, space group P 2(1)/ c , a  = 10.774(3), b  = 10.845(3), c  = 41.063(11) A, β  = 96.497(5)°, V  = 4768(2) A 3 and Z  = 4.