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TbCu(TeO3)2Cl was obtained in high yield from high temperature solid-state reac-ion of Tb4O7,CuO,CuCl2 and TeO2 in a 1:2:2:8 molar ratio at 710 ℃ in an evacuated quartz tube. Its structure was established by single-crystal X-ray diffraction. The title compound crystal-lizes in monoclinic,space group P21/c,with a=5.409(2),b=14.994(6),c=9.183(4),β= 98.884(5)°,V=735.8(5) ?3 and Z=4. TbCu(TeO3)2Cl is isostructural with LnCu(TeO3)2X (Ln= Dy,X= Cl; Ln=Er,X=Cl,Br). Its structure features a three-dimensional (3D) network built from Tb(Ⅲ) and Cu(II) ions interconnected by tellurite and chloride anions; the chloride anion and the lone-pair electrons of the tellurium(IV) ions are oriented toward the cavities of the tunnels in the network. Solid-state luminescent spectrum of TbCu(TeO3)2Cl shows a strong emission band at 545 nm with a luminescent life time of 291 μs.
TbCu (TeO3) 2Cl was obtained in high yield from high temperature solid-state reac-ion of Tb4O7, CuO, CuCl2 and TeO2 in a 1: 2: 2: 8 molar ratio at 710 ℃ in an evacuated quartz tube. established by single-crystal X-ray diffraction. The title compound crystal-lizes in monoclinic space group P21 / c with a = 5.409 (2), b = 14.994 98.884 (5) °, V = 735.8 (5)? 3 and Z = 4. TbCu (TeO3) 2Cl isostructural with LnCu (TeO3) 2X (Ln = Dy, X = Cl; Ln = Er, X = Cl, Br The structure features a three-dimensional (3D) network built from Tb (III) and Cu (II) ions interconnected by tellurite and chloride anions; the chloride anion and the lone-pair electrons of the tellurium (IV) ions are oriented toward the cavities of the tunnels in the network. Solid-state luminescent spectrum of TbCu (TeO3) 2Cl shows a strong emission band at 545 nm with a luminescent life time of 291 μs.