Homochiral Lanthanide Phosphonates with Brick-Wall-Shaped Layer Structures Showing Chiroptical and Catalytical Properties
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- 作者：Xun-Gao Liu ; Kai Zhou ; Jia Dong ; Cheng-Jian Zhu ; Song-Song Bao ; Li-Min Zheng*
- 刊名：Inorganic Chemistry
- 出版年：2009
- 出版时间：March 2, 2009
- 年：2009
- 卷：48
- 期：5
- 页码：1901-1905
- 全文大小：255K
- 年卷期：v.48,no.5(March 2, 2009)
- ISSN：1520-510X
文摘
Based on enantiopure S- or R-(1-phenylethylamino)methylphosphonic acid (pempH2), homochiral lanthanide phosphonates (S)-[Ln(pempH)(NO3)2(H2O)2] (S-Ln) and (R)-[Ln(pempH)(NO3)2(H2O)2] (R-Ln) (Ln = Eu, Tb, Ho) are obtained successfully. All six compounds are isostructural, showing chiral brick-wall-shaped layer structures. They are all optically active, exhibiting second harmonic generation responses 0.7 times that of urea. The Eu and Tb compounds display strong red and green luminescent properties, respectively, with long luminescent lifetimes at the level of milliseconds. The catalytic properties of the dehydrated S-Tb are studied.