The title compound was synthesized by high temperature reaction of elements. TaNi_2Te_3, M_r= 681. 15, crystallizes in space group P2_1/m with dimensions a =7. 473(2), b=3. 708(1), c=10. 074(2) A, β=106. 78(2)°,...The title compound was synthesized by high temperature reaction of elements. TaNi_2Te_3, M_r= 681. 15, crystallizes in space group P2_1/m with dimensions a =7. 473(2), b=3. 708(1), c=10. 074(2) A, β=106. 78(2)°, V=267. 3(1) A￣3,Z= 2, D_c= 8. 46 g ·cm￣(-3), P=431. 43 cm￣(-1), F(000) = 570, T= 296K. The structure has been refined to final R = 0. 053 for 963 observations. This layered structure contains square-pyramidal Ta atoms and tetrahedral Ni atoms each coordinated by Te atoms. The layered structure may be considered as chain units ∞￣1[Ta_2Ni_2Te_6], which are linked by zigzag chains ∞￣1[Ni]. The title compound possesses a two-dimensional metal cluster. The structural relationship between this compound and its related compounds is discussed, and this is helpful for designing and synthesizing new layered compounds.展开更多
文摘The title compound was synthesized by high temperature reaction of elements. TaNi_2Te_3, M_r= 681. 15, crystallizes in space group P2_1/m with dimensions a =7. 473(2), b=3. 708(1), c=10. 074(2) A, β=106. 78(2)°, V=267. 3(1) A￣3,Z= 2, D_c= 8. 46 g ·cm￣(-3), P=431. 43 cm￣(-1), F(000) = 570, T= 296K. The structure has been refined to final R = 0. 053 for 963 observations. This layered structure contains square-pyramidal Ta atoms and tetrahedral Ni atoms each coordinated by Te atoms. The layered structure may be considered as chain units ∞￣1[Ta_2Ni_2Te_6], which are linked by zigzag chains ∞￣1[Ni]. The title compound possesses a two-dimensional metal cluster. The structural relationship between this compound and its related compounds is discussed, and this is helpful for designing and synthesizing new layered compounds.
