| 两种含有十二元环的层状稀土硫酸盐的合成、结构表征及性质研究 | |
| Synthesis，Structural Characterization and Properties of Two New Layered Lanthanide Sulfates Containing 12-Membered-Rings | |
| 摘要: 通过溶剂热合成技术，我们得到了两种新的二维层状稀土硫酸盐：[Tb2(SO4)5][(CH3)2NH2]4(1)和[Y2(SO4)5][(CH3)2NH2]4(2)，并通过X-射线衍射、元素分析及红外、热重对化合物进行了表征。两种化合物都属于三斜晶系，P1空间群。其中化合物1：a=0.988 7(3) nm，b=1.106 1(3) nm，c=1.535 4(4) nm，α=70.45(4)°，β=75.12(3)°，γ=67.11(3)°，Z=2；化合物2：a=0.981 6(5) nm，b=1.100 1(5) nm，c=1.528 6(8) nm，α=70.44(6)°，β=75.45(6)°，γ=67.48(6)°，Z=2。通过对晶体结构进行表征我们发现两种化合物都含有二维层状无机骨架结构，该层由2种不同类型的双链和十二元环构成。我们还对化合物1的荧光性质进行了研究，其在369 nm的激发波长下表现出了Tb3+的特征发射。 | |
| 关键词: 溶剂热合成方法 稀土硫酸盐 晶体结构 荧光 | |
| 基金项目: 教育部博士点新教师基金（No.20113221120002）、江苏省科技厅自然科学基金（No.BK2012823）资助项目。 | |
| Abstract: Employing solvothermal method, two new lanthanide sulfates [Tb2(SO4)5][(CH3)2NH2]4(1) and [Y2(SO4)5][(CH3)2NH2]4(2) with two-dimensional layered structures have been synthesized and characterized by single-crystal XRD, ICP, IR and TGA. Both of the two compounds crystallize in the triclinic space group p1. Crystal data for 1, a=0.988 7(3) nm, b=1.106 1(3) nm, c=1.535 4(4) nm, α=70.45(4)°, β=75.12(3)°, γ=67.11(3)°, Z=2. For 2, a=0.9816(5) nm, b=1.100 1(5) nm, c=1.528 6(8) nm, α=70.44(6)°, β=75.45(6)°, γ=67.48(6)°, Z=2. Crystal structure analysis reveals that both of the inorganic frameworks of Compound 1 and 2 have layered two-dimensional architectures which are formed by two types of double stranded chains and 12-membered rings (12MRs). The solid state luminescent properties of compounds 1 were investigated and it displays a typical luminescent property of Tb3+ with excitation wavelength at 369 nm. CCDC: 941147, 1; 941148 2. | |
| Keywords: solvothermal method lanthanide sulfate crystal structure luminescent | |
| 投稿时间：2012-12-06 修订日期：2013-05-04 | |
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| 吕赟,张登,范新蓉,万洪祥,许岩.两种含有十二元环的层状稀土硫酸盐的合成、结构表征及性质研究[J].无机化学学报,2013,29(12):2623-2630. | |
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