Crystal structure of a 1 : 2 channel inclusion adduct of 5-methylbenzene-1,3-dicarbaldehyde bis-(p-tolylsulphonylhydrazone) and benzene

Abstract

A 1:2 crystalline solvate (1) of 5-methylbenzene-1,3-dicarbaldehyde bis-(p-tolylsulphonylhydrazone)(2) and benzene has been synthesized and characterized as a channel inclusion complex by X-ray analysis. Crystals of (1) are orthorhombic, with a= 8.135(2), b= 19.021 (4), c= 23.015(2)Å, Z= 4, and space group C2ca(No. 41). The structure was solved by direct methods and refined to R 0.039 on 1 211 observed diffractometer data. The bis-(tosylhydrazone) molecules (2) attain crystallographic two-fold symmetry and constitute the host lattice. The guest (benzene) molecules occupy positions in continuous, zigzag channels running through the crystal along the a direction, the axis of each channel coinciding with a crystallographic two-fold screw axis.