Rb2 W6 Cl18

Rb₂W₆Cl₁₈ is a mixed-valence metal halide cluster compound belonging to the family of reduced tungsten chlorides, typically synthesized as a discrete molecular or low-dimensional solid-state material. This is a research-phase compound of interest in solid-state chemistry and materials science rather than an established engineering material; it represents the broader class of polyoxometalate and metal halide cluster compounds being investigated for potential semiconductor, photocatalytic, and electronic device applications due to the tunable electronic properties arising from the combination of transition metal centers and halide ligands.