摘要EuMg6Sn3.67 has been synthesized by reacting the mixture of the corresponding pure elements at high temperature, and structurally characterized by single-crystal X-ray diffraction study. EuMg6Sn3.67 crystallizes in hexagonal space group P63/m (No. 176) with a = 11.7259(4), c = 4.5507(2) Å, V = 541.88(4) Å3, Z = 2, Mr = 734.60, Dc = 4.502 g/cm3, μ = 14.348 mm-1, F(000) = 638, the final R = 0.0128 and wR = 0.0378 for 464 observed reflections with I > 2σ(I). EuMg6Sn3.67 is closely related to the Ba2Mg12Ge7.33 structure type and features a three-dimensional [Mg6Sn3.67] framework with one-dimensional hexagonal tunnels along the c-axis occupied by the Eu atoms. Electronic structure calculation indicates that the title compound is metallic.
Abstract：EuMg6Sn3.67 has been synthesized by reacting the mixture of the corresponding pure elements at high temperature, and structurally characterized by single-crystal X-ray diffraction study. EuMg6Sn3.67 crystallizes in hexagonal space group P63/m (No. 176) with a = 11.7259(4), c = 4.5507(2) Å, V = 541.88(4) Å3, Z = 2, Mr = 734.60, Dc = 4.502 g/cm3, μ = 14.348 mm-1, F(000) = 638, the final R = 0.0128 and wR = 0.0378 for 464 observed reflections with I > 2σ(I). EuMg6Sn3.67 is closely related to the Ba2Mg12Ge7.33 structure type and features a three-dimensional [Mg6Sn3.67] framework with one-dimensional hexagonal tunnels along the c-axis occupied by the Eu atoms. Electronic structure calculation indicates that the title compound is metallic.
2013, Vol. 32 
