| 张桂玲,冉靓,罗绪强,曾加.化学通报,2014,77(6):515-520. |
| (英)两个基于大环配体五员瓜环的异核金属配合物的合成及晶体结构 |
| Synthesis and Crystal Structure of two Heterometallic complexes on the basis of Macrocyclic ligand Cucurbit[5]uril |
| 投稿时间：2014-01-12 修订日期：2014-01-17 |
| DOI： |
| 中文关键词: 五员瓜环 钾离子 钠离子 晶体结构 |
| 英文关键词:cucurbit[5]uril potassium ions sodium ions crystal structure |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 设计并合成了两个五环员瓜环(Q[5])桥联K 和Na 形成的新型配合物[K(H2O)2Na(H2O)Q[5]](ClO4)2?6H2O (1), [KNaH(H2O)4Q[5]]n(ClO4)3n?3nH2O (2)。利用单晶X射线衍射进行结构测定，结果表明：配合物(1)中Q[5]起着一个双五齿配体的作用, 每个端口的五个羰基氧原子分别和钾离子和钠离子配位，形成分子胶囊；配合物(2)中每个钾离子分别通过与相邻的两个Q[5]端口的相邻一对羰基氧原子配位，使得配合物形成一维链状结构，同时Q[5]还提供一个羰基氧原子与Na 配位，氢键使得配合物形成三维超分子结构。 |
| 英文摘要: |
| Two new complexes based on cucurbit[5]uril bridge K and Na [K(H2O)2Na(H2O)Q[5]](ClO4)2?6H2O (1), [KNaH(H2O)4Q[5]]n(ClO4)3n?3nH2O (2), where Q[5] represents cucurbit[5]uril, have been synthesized and characterized by X-ray diffraction. The crystal structure shows that two portals of Q[5] were lidded by Na and K respectively in complex (1), where Q[5] acts as bi-fivedentate ligand. In complex (2), K form columnar one-dimensional coordination polymers with Q[5], in which Q[5] molecules stack atop one another through coordination of their two neighboring carbonyl groups to K in between. Q[5] also contribute one carbonyl oxygen to coordinate with Na , hydrogen bonds assemble the complex to three-dimensional supramolecular structure. |
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