Encircling of mercury(II) by a macrocyclic ligand: X-ray crystal structure of 1,5,9,13-tetrathiacyclohexadecanemercury(II) perchlorate

Abstract

The crystal structure of the most stable complex involving Hg^II co-ordinated to a macrocyclic tetrathia-ether (1,5,9,13-tetrathiacyclohexadecane) reveals that the Hg^II ion is situated almost in the centre of the four sulphur donor atoms, which themselves are twisted somewhat out of plane, with the inner co-ordination sphere being completed by two unequally bonded perchlorate ions situated along the z axis.