Hydroquinone-assisted assembly of coordination polymers from lanthanides and cucurbit[5]uril

Hydroquinone-assisted assembly of coordination polymers from lanthanides and cucurbit[5]uril
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对苯二酚辅助从镧系元素和葫芦[5]脲组装配位聚合物

DOI:
10.1039/c2ce26200b
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发表时间:
2012-10
期刊:
The Royal Society of Chemistry
影响因子:
--
通讯作者:
Kai Chen, Li-Li Liang, Zhu Tao, Qian-Jiang Zhu
Kai Chen, Li-Li Liang, Zhu Tao, Qian-Jiang Zhu
中科院分区:
其他
文献类型:
--
作者:
Kai Chen, Li-Li Liang, Zhu Tao, Qian-Jiang Zhu

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以对苯二酚(HyQ)为有机结构诱导剂,将8种不同的稀土离子(Ln3+)与葫芦巴[5]脲(Q[5])组装成配位聚合物。X-射线衍射分析表明,随着稀土原子序数的增加,形成了三种不同构型的配位聚合物。轻稀土阳离子与Q[5]配位形成线性一维配位聚合物;稀土中间阳离子如Eu(III)或Gd(III)配位形成Q[5]对,其中两个Q[5]分子通过Eu(III)或Gd(III)离子连接;重稀土阳离子与Q[5]配位形成均手性一维螺旋配位聚合物。
Coordination polymers have been assembled from a series of eight different lanthanide ions (Ln3+) and cucurbit[5]uril (Q[5]) in the presence of hydroquinone (Hyq) as an organic structure inducer. X-ray diffraction analysis has revealed three distinct configurations of the coordination polymers formed with increasing atomic number of the lanthanide. The coordination of light lanthanide cations to Q[5] leads to the formation of linear one-dimensional coordination polymers; the coordination of intermediate lanthanide cations such as Eu(III) or Gd(III) leads to the formation of Q[5] pairs in which the two Q[5] molecules are connected by the Eu(III) or Gd(III) ions; and the coordination of heavy lanthanide cations to Q[5] leads to the formation of homochiral one-dimensional helical coordination polymers.
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发表时间: 1999-03
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