摘要
The single crystals of the title quaternary compound were synthesized by solid state reaction at 950℃ from SmOBr-V-NH_4Cl system.It crystallized in monoclinic system,space group C2/M with cell dimmensions of a=1.3255(2) nm.b=0. 5588(5) nm, c=1.0942(5) nm;β=100.48(2)°;Γ=0.797(1) nm3; Z=2; Dc= 5.50 g/cm3 ; F(000) = 1190; μ(MoKα)=176.82cm-1.The final R and Rw for 1430 reflections with I>3.00 σ(I) were 0.071 and0.085 respectively.The Sm atoms are 8-coordinated.the V atoms have octahedral coordination environment and the Si atoms are tetrahedral.The structure of the title compound is built from vanadium octahedra layers and samarium-vanadium-silicate slabs.
The single crystals of the title quaternary compound were synthesized by solid state reaction at 950℃ from SmOBr-V-NH_4Cl system.It crystallized in monoclinic system,space group C2/M with cell dimmensions of a=1.3255(2) nm.b=0. 5588(5) nm, c=1.0942(5) nm;β=100.48(2)°;Γ=0.797(1) nm3; Z=2; Dc= 5.50 g/cm3 ; F(000) = 1190; μ(MoKα)=176.82cm-1.The final R and Rw for 1430 reflections with I>3.00 σ(I) were 0.071 and0.085 respectively.The Sm atoms are 8-coordinated.the V atoms have octahedral coordination environment and the Si atoms are tetrahedral.The structure of the title compound is built from vanadium octahedra layers and samarium-vanadium-silicate slabs.
