Two Unusual Chiral Lanthanide鈥揝ulfate Frameworks with Helical Tubes and Channels Constructed from Interweaving Two Double-Helical Chains

详细信息    查看全文

• 作者：Wen-Hua Wang ; Han-Rui Tian ; Zhi-Chao Zhou ; Yun-Long Feng ; Jian-Wen Cheng
• 刊名：Crystal Growth & Design
• 出版年：2012
• 出版时间：May 2, 2012
• 年：2012
• 卷：12
• 期：5
• 页码：2567-2571
• 全文大小：310K
• 年卷期：v.12,no.5(May 2, 2012)
• ISSN：1528-7505

文摘

Two novel chiral lanthanide鈥搒ulfate 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 SO₄^{2鈥?/sup> 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.}