Abstract
Abstract Single crystal X-ray analysis of the 1:1 complex (I) between the cis-anti-cis- isomer of dicyclohexano-18-crown-6 (DCH-6B, host—H) and 6-chloro-7-sulphamido-3,4-dihydro-1,2,4-benzo-thiadiazine-1, 1-dioxide (hypothiazide, guest—G) is reported. Crystals of (I) are triclinic, space group P 1 , a = 17.838(4), b = 14.164(3), c = 14.332(3)A; α = 90.51(4), β = 110.82(4), γ = 97.61(3)° and Dcalc = 1.387 gom−3 for Z = 4. The final R-factor is 0.087 for 8886 reflections. The crystal packing is characterized by two types of chains where hydrogen bonding joins crown ether and guest entities. The chains differ by acetone molecule inclusion which is H-bonded to one of the guest imino groups. Between the individual chains there are only van der Waals interactions. Host molecules adopt D3d and Ci conformations in the complex.
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