Exploring the Breadth of Terminal Ligands Coordinated in [Mo6X8](4+)- and [Re(6)Q(8)](2+)-Based Cluster Complexes

This survey provides an overview of the different types of terminal ligands incorporated into molybdenum halide and rhenium chalcogenide cluster complexes. While the incorporation of halide and pseudohalide ligands is prevalent with these systems, this article focuses on the coordination of other nitrogen-, oxygen-, sulfur-, and carbon-donor ligands. Emphasis has been placed on synthetic methodologies and the significance behind coordination of these ligands to discrete cluster complexes.