Two Unusual Chiral Lanthanide–Sulfate Frameworks with Helical Tubes and Channels Constructed from Interweaving Two Double-Helical Chains
Two Unusual Chiral Lanthanide–Sulfate Frameworks with Helical Tubes and Channels Constructed from Interweaving Two Double-Helical Chains
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DOI：
10.1021/cg3001703
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发表时间：
2012-04
影响因子：
3.8
通讯作者：
Wen‐Hua Wang;Han-Rui Tian;Zhicun Zhou;Yun-long Feng;Jian-Wen Cheng
中科院分区：
文献类型：
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作者：
Wen‐Hua Wang;Han-Rui Tian;Zhicun Zhou;Yun-long Feng;Jian-Wen Cheng
采用水热法合成了两种新型的手性镧系硫酸盐骨架化合物Ln_4（OH）_4（SO_4）_4（H_2 O）_3 [Ln = Y（1）和Er（2）]。X射线晶体结构分析表明，1和2是类质同象的，并且在正交空间群P2（1）2（1）2（1）中结晶。这两种化合物都是同构的，并且含有由双左手和右手螺旋链构建的螺旋管和通道。进一步的结构分析表明，化合物1是一个高度连通的双结点网络，其中SO 42-为三结点，{Y 4}簇为12结点。此外，还研究了其红外光谱、热重分析和粉末X-射线衍射性能。
Two novel chiral lanthanide–sulfate frameworks, Ln4(OH)4(SO4)4(H2O)3 [Ln = Y (1) and Er (2)], have been synthesized under hydrothermal reactions. X-ray crystal structure analyses reveal that 1 and 2 are isomorphous and crystallize in the orthorhombic space group P2(1)2(1)2(1). Both compounds are isostructural and contain helical tubes and channels constructed from double left- and right-handed helical chains. Further structural analysis reveals that compound 1 is a high connected binodal net by assigning the SO42– anion as a three-connected node and the {Y4} cluster as a 12-connected node. Furthermore, the infrared, thermogravimetric analysis, and powder X-ray diffraction properties were also studied.