Complexation of methylparathion and bis(2-hydroxyethyl)sulfide by the tridentate Lewis acid [(o-C6F4Hg)(3)]

The interaction of trimeric perfluoro-ortho-phenylene mercury (1) with bis(2-hydroxyethyl)sulfide (S((CH2)(2)OH)(2)) in dichloromethane and methylparathion (SP(OMe)(2)(p-C6H4NO2)) in 1,2-dichloroethane leads to the crystallization of [1.(S((CH2)(2)OH)(2))] and [1.(mu(3)-SP(OMe)(2)(p-C6H4NO2))(2)], respectively. These two adducts have been characterized by elemental analysis and single crystal X-ray diffraction. The structure of [1.S((CH2)(2)OH)(2)] shows that the bis(2-hydroxyethyl)sulfide molecule interacts with the mercury centers of 1 by formation of a Hg-S interaction of 3.138(4) angstrom. Association of the two components is further strengthened by the coordination of one of the oxygen atoms of the bis(2-hydroxyethyl)sulfide molecule. This oxygen atom interacts simultaneously with three mercury centers of 1 with Hg-O distances ranging from 2.889(8) to 3.142(9) angstrom. In the lattice, molecules of [1.(S((CH2)(2)OH)(2))] associate with compact cofacial dimers with Hg-Hg metallophilic contacts of 3.794 angstrom and 4.076 angstrom. The structure of [1.(mu(3)-SP(OMe)(2)(pC(6)H(4)NO(2)))(2)] is that of a 2:1 complex in which two molecules of methylparathion are triply coordinated via their sulfur atom to the mercury centers of 1 on either side of the molecular plane. The Hg-S contacts fall within the range of 3.278 and 3.651 angstrom. (c) 2005 Wiley Periodicals, Inc.