Structure and spectral measurements of a new rubidium europium polyphosphate

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A new rubidium europium polyphosphate,RbEu(PO_3)_4,was synthesized by the high-temperature solution reaction and studied by single-crystal X-ray diffraction(XRD) technique.RbEu(PO_3)_4 belongs to the monoclinic space group P2_1/n(Z = 4) and characterizes a three-dimensional framework made up from double PO_4 spiral chains,RbO_(11),and EuO_8 polyhedra.The absorption spectrum indicates that the compound has no absorption above 320 nm with insulator characteristic.In addition,the infrared spectroscopy was carried out. A new rubidium europium polyphosphate, RbEu (PO_3) _4, was synthesized by the high-temperature solution reaction and studied by single-crystal X-ray diffraction (XRD) technique.RbEu (PO_3) _4 belongs to the monoclinic space group P2_1 / n (Z = 4) and characterizes a three-dimensional framework made up from double PO 4 spiral chains, RbO 11 and EuO 8 polyhedra. The absorption spectrum indicates that the compound has no absorption above 320 nm with an insulator characteristic. In addition, the infrared spectroscopy was carried out.
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