A series of color-tunable light-emitting open-framework lanthanide sulfates containing extra-large 36-membered ring channels
A series of color-tunable light-emitting open-framework lanthanide sulfates containing extra-large 36-membered ring channels
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DOI：
10.1039/c7ce01319a
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发表时间：
2017-10
期刊：
影响因子：
3.1
通讯作者：
Yun-Shan Xue;D. Shi;Haitao Zhang;Weiwei Ju;Hua Mei;Yan Xu
中科院分区：
文献类型：
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作者：
Yun-Shan Xue;D. Shi;Haitao Zhang;Weiwei Ju;Hua Mei;Yan Xu
利用分子簇构筑基团的标度化学理论，合成了一系列含36元环(36-MR)通道的等结构稀土硫酸盐LnSO4-NTU1(Ln=Eu(1)，Tb(2)，Sm(3)，Dy(4)，Er(5))。由四面体{Ln10(SO4)16}簇合物组装而成的2重互穿网络。一个单一的DIA框架包含36个MR通道，其孔径(22.0×16.8A)达到中尺度。LnSO4-NTU1的发现创造了一项新的纪录，将现有的金属硫酸盐最大通道尺寸从24 mR向前推至36 mR。值得注意的是，通过调节骨架中Eu：Tb的摩尔比，Mix-Eu/TbSO4-NTU1显示出从红色到绿色的颜色可调发光。
A series of isostructural lanthanide sulfates LnSO4-NTU1 (Ln = Eu (1), Tb (2), Sm (3), Dy (4), and Er (5)) containing extra-large 36-membered ring (36-MR) channels were prepared by employing “scale chemistry” theory with cluster building units. The 2-fold interpenetrated dia network was assembled with tetrahedral {Ln10(SO4)16} clusters. A single dia framework contains 36-MR channels with the pore size (22.0 × 16.8 A) reaching the mesoscale. The discovery of LnSO4-NTU1 sets a new record, pushing the existing maximum channel size of metal sulfates from 24-MR forward up to 36-MR. Notably, mix-Eu/TbSO4-NTU1 exhibits color-tunable luminescence from red to green through adjusting the molar ratio of Eu : Tb in the frameworks.