The crystal structure of Ni3Sn2S2 and related compounds

Abstract Ni3Sn2S2 is monoclinic, space group B2 m(C 3 2h ) with a = 9.331(3), b = 5.403(2), c = 5.458(2) A , γ = 124.55°(2) . This compound is a nickel sulfostannide with each Ni atom surrounded by four Sn and two S atoms. Other compounds with this type of structure are Ni3B2S2 (B = Pb, Tl, In) and Ni3Pb2Se2. Ni3Bi2S2 presents a different crystal symmetry.