K2 Mn1 Nb6 Cl18

K₂Mn₁Nb₆Cl₁₈ is a layered halide perovskite compound combining potassium, manganese, niobium, and chlorine—a class of materials of significant interest in solid-state chemistry and materials research. This compound belongs to the family of metal halides being explored for semiconductor and photonic applications, though it remains primarily in the research phase rather than established industrial production. The layered perovskite structure is notable for tunable electronic and optical properties, making it a candidate for emerging technologies in quantum materials, low-dimensional semiconductors, and potentially photovoltaic or optoelectronic devices.