Citation: Kanatzidis, M.G.; Liao, J.-H. (1993). Quaternary Rb2Cu2SnS4,A2Cu2Sn2S6 (A=Na,K,Rb,Cs), A2Cu2Sn2Se6 (A=K,Rb), K2Au2SnS4 and K2Au2Sn2S6. Syntheses, structures and properties of new solid-state chalcogenides based on tetrahedral (SnS4)(4-) units. Chemistry of Materials (1,1989-), 5, pp. 1561-1569.