Dimensional Reduction of Re6Se8Cl2: Sheets, Chains, and Discrete Clusters Composed of Chloride‐Terminated [Re6Q8]2+ (Q S, Se) Cores

A general high-temperature approach to reducing the dimensionality of cluster frameworks is formulated and employed in deconstructing the two-dimensional Re6Se8Cl2 structure. The resulting new phases with [Re6Q8]2+ (Q  S, Se) cores exhibit two-dimensional [Re6Se8Cl3]− sheets, one-dimensional [Re6Q8Cl4]2− chains, and [Re6Q8Cl6]4− clusters. The structures of these phases are presented along with that of Tl5Re6Se8Cl7 which contains the unprecedented molecular cluster [Re6Se8Cl6]4− 1.