Synthesis and X-ray crystal structures of new trirhenium nonachloride chalcogenide clusters

The acetone adduct of trirhenium nonachloride, Re3Cl9(acet)(3), where acet= acetone, reacts in acetone solution at room temperature with tetrabutylammo nium chalcogenides [N(C4H9)(4)](2)E, where E = S, Se and Te, producing the tetrabutylammonium salts of the new cluster anions [Re-3(mu(3)-E)(mu(2)-Cl) (3)Cl-6](2-). In the crystallographically determined structures of these co mpounds, triangles of rhenium atoms are capped by single chalcogen atoms, g iving anions of near C-3v symmetry. The compound where E=S is also formed i n the reaction of Re3Cl9 with [N(C4H9)(4)](2)[MoS4] by sulfide transfer. (C ) 1998 Elsevier Science Ltd. All rights reserved.