Synthesis of Hydrated Ternary Lanthanide-Containing Chlorides Exhibiting X-ray Scintillation and Luminescence
Synthesis of Hydrated Ternary Lanthanide-Containing Chlorides Exhibiting X-ray Scintillation and Luminescence
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DOI：
10.1021/acs.inorgchem.1c02004
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发表时间：
2021-10-07
影响因子：
4.6
通讯作者：
Zur Loye, Hans-Conrad
中科院分区：
文献类型：
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作者：
Ayer, Gyanendra B.;Smith, Mark D.;Zur Loye, Hans-Conrad
一系列新型三元镧系元素氯化物，Cs2EuCl5(H2O)(10)、Cs(7)LnCl(10)(H2O)(8)（Ln = Gd或Ho）、Cs10Tb2Cl17(H2O)(14)(H3O)、Cs2DyCl5(H2O)(6)、 Cs8Er3Cl17(H2O)(25) 和 Cs(5)Ln(2)Cl(11)(H2O)(17) (Ln = Y、Lu 或 Yb) 通过简单的溶液途径制备为单晶。组成为 Cs(7)LnCl(10)(H2O)(8) (Ln = Gd 或 Ho) 和 Cs(5)Ln(2)Cl(11)(H2O)(17) (Ln = Y、Lu 或 Yb) 的化合物分别在空间群 C2 和 P2(1) / c 中以单斜晶系结晶，其中 Cs2EuCl5(H2O)(10)， Cs(10)Tb(2C)l(17)(H2O)(14)(H3O)和Cs8Er3Cl17(H2O)(25)分别以正交空间群Pbcm、Pnma和P2(1)2(1)2(1)结晶。 Cs2DyCl5(H2O)(6) 在空间群 P1 中以三斜对称结晶。所有这些化合物都表现出复杂的三维结构，这些结构由孤立的镧系元素多面体单元构成，这些单元通过广泛的氢键连接在一起。 Cs2EuCl5(H2O)(10)和Cs10Tb2Cl17(H2O)(14)(H3O)在375 nm紫外光照射下发光，分别发出强烈的橙红色和绿色，Cs10Tb2Cl17(H2O)(14)(H3O)在暴露于X射线时闪烁。粉末形式的 Cs10Tb2Cl17(H2O)(14)(H3O) 的辐射发光 (RL) 测量表明，在 300-750 nm 范围内积分的 RL 发射与 16% BGO 粉末相似。
A series of new ternary lanthanide-based chlorides, Cs2EuCl5(H2O)(10), Cs(7)LnCl(10)(H2O)(8) (Ln = Gd or Ho), Cs10Tb2Cl17(H2O)(14)(H3O), Cs2DyCl5(H2O)(6), Cs8Er3Cl17(H2O)(25), and Cs(5)Ln(2)Cl(11)(H2O)(17) (Ln = Y, Lu, or Yb), were prepared as single crystals via a facile solution route. The compounds with compositions of Cs(7)LnCl(10)(H2O)(8) (Ln = Gd or Ho) and Cs(5)Ln(2)Cl(11)(H2O)(17) (Ln = Y, Lu, or Yb) crystallize in a monoclinic crystal system in space groups C2 and P2(1) / c, respectively, where as Cs2EuCl5(H2O)(10), Cs(10)Tb(2C)l(17)(H2O)(14)(H3O), and Cs8Er3Cl17(H2O)(25) crystallize in ortho-rhombic space groups Pbcm, Pnma, and P2(1)2(1)2(1), respectively. Cs2DyCl5(H2O)(6) crystallizes with triclinic symmetry in space group P1. All of these compounds exhibit complex three-dimensional structures built of isolated lanthanide polyhedral units that are linked together by extensive hydrogen bonds. Cs2EuCl5(H2O)(10) and Cs10Tb2Cl17(H2O)(14)(H3O) luminesce upon irradiation with 375 nm ultraviolet light, emitting intense orange-red and green color, respectively, and Cs10Tb2Cl17(H2O)(14)(H3O) scintillates when exposed to X-rays. Radioluminescence (RL) measurement of Cs10Tb2Cl17(H2O)(14)(H3O) in powder form shows that the RL emission integrated in the range of 300-750 nm was similar to 16% of BGO powder.