第二结构导向剂诱导形成的二维有机模板稀土硫酸盐
Formation of 2D Organic Templated Lanthanide Sulfates Induced by Second Structural Directing Agent
作者单位E-mail
石杰 南京工业大学化工学院, 材料化学工程国家重点实验室, 南京 210009  
成伟唯 南京师范大学泰州学院化学与生物工程学院, 泰州 225300  
郑磊 南京工业大学化工学院, 材料化学工程国家重点实验室, 南京 210009  
许岩 南京工业大学化工学院, 材料化学工程国家重点实验室, 南京 210009 yanxu@njtech.edu.cn 
摘要: 水热条件下合成了具有超大孔道和层状结构的有机模板稀土硫酸盐。超大孔道的稀土硫酸盐(1)的分子式为[(CH32NH2]9[Pr5(SO412]·2H2O,它展现出有趣的交叉二十元环孔道结构。层状的稀土硫酸盐的分子式为[H3O]3[(CH32NH2]3[Ln2(SO46](Ln=Pr,2;Nd,3),它可以被看作是由双链和八元环结合而成。这3种化合物的合成揭示了大的有机胺(三聚氰胺)可能用作为第二结构导向剂,阻止形成高维数的无机骨架,从而诱导了二维层状结构稀土硫酸盐晶体的生长。对化合物13的磁性进行了研究,测试的温度范围在2~300 K。
关键词: 稀土硫酸盐  二十元环孔道  结构导向剂  磁性
基金项目: 国家自然科学基金(No.21571103)资助项目。
Abstract: Extra-large-pore and layered organically templated lanthanide sulfates have been prepared under solvothermal conditions. The extra-large-pore lanthanide sulfates, with the composition [(CH3)2NH2]9[Pr5(SO4)12]·2H2O (1), exhibit an interestingly intersecting 20-membered ring channels. The layered lanthanide sulfates, formulated as [H3O]3[(CH3)2NH2]3[Ln2(SO4)6] (Ln=Pr for 2, Nd for 3), can be considered as combination of double-stranded chains and 8-membered rings. The synthesis of three compounds demonstrates that large organic amine (1,3,5-triazine-2,4,6-triamine) may be used as the second structural directing agent to prevent the formation of high dimensional inorganic framework as well as inducing crystal the growth of 2D layer structural lanthanide sulfates. The magnetic property of compounds 1 and 3 has been investigated through the magnetic measurement over the temperature range of 2~300 K.
Keywords: lanthanide sulfates  20-membered ring channels  structural directing agent  magnetic property
投稿时间:2017-06-01 修订日期:2017-09-11
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石杰,成伟唯,郑磊,许岩.第二结构导向剂诱导形成的二维有机模板稀土硫酸盐[J].无机化学学报,2017,33(11):2083-2094.
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