Changing the oxothiomolybdate ring from an anionic to a cationic receptor

Inorg Chem. 2007 Nov 12;46(23):9516-8. doi: 10.1021/ic701432s. Epub 2007 Oct 12.

Abstract

The ionic recognition properties of neutral oxothiomolybdenum wheels can be changed from anionic to cationic through ionization of the internal aquo ligands. In the solid state, [Mo8O8S8(OH)10(H2O)]2- (1) interacts with two Cs+ cations to give a close supramolecular host-guest arrangement. Such interactions appear to be maintained in solution as a labile association.