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The potassium terbium polyphosphate crystal KTb(PO_3)_4 has been synthesized using a high temperature solution reaction method. The structure and composition were characterized by single-crystal X-ray diffraction, powder X-ray diffraction and elemental analysis. The compound crystallizes in the monoclinic space group P21/n with a=10.3182(6), b=8.9129(5), c=10.7940(6) ?, β=105.993(1)o, V=954.3 ?~3, Z=4, Mr=513.91, Dc=3.577 g/cm~3, μ=8.585 mm~(-1), F(000)=960, S=0.955,(Δρ)max=1.380,(Δρ)min=–3.428 e/?~3, the final R=0.0301 and w R=0.0400 for 2301 observed reflections with I > 2σ(I). In addition, pure powder of isostructural Rb Tb(PO_3)_4 was synthesized in order to investigate the optical property. Photoluminescence measurements show that both crystals ATb(PO_3)_4(A=K(1), Rb(2)) are promising candidates to become solid-state visible green light-emitting sources.
The structure and composition were characterized by single-crystal X-ray diffraction, powder X-ray diffraction and elemental analysis. The compound crystallizes in the (1) o, V = 954.3 ~ 3, Z = 4, Mr = 1, 513.91, Dc = 3.577 g / cm ~ 3, μ = 8.585 mm -1, F 000 = 960, S = 0.955, Δρ max = 1.380, Δρ min = -3.428 e / 3, the final R = 0.0301 and w R = 0.0400 for 2301 observed reflections with I> 2σ (I). In addition, pure powder of isostructural Rb Tb (PO_3) _4 was synthesized in order to investigate the optical property. Photoluminescence measurements show that both crystals ATb (PO_3) _4 (A = K (1), Rb (2)) are promising candidates to become solid-state visible green light-emitting sources.