【作者】 孙长艳； 郑向军； 金林培；

【Author】 Changyan Sun Xiangjun Zheng Linpei Jin (School of Chemistry, Beijing Normal University Beijing 100875)

【机构】 北京师范大学化学学院；

【摘要】 <正>微孔超分子配合物是由配位键与氢键、π-π堆积等其它非共价作用力共同构筑的具有微孔结构的配合物,它们在磁性、催化和分子识别等方面都有着潜在的应用前景,因此关于微孔超分子配合物的研究引起了化学家们的广泛关注。含有杂的氮原子和氧原子的多功能团的配体可以采取丰富多变的配位模式,且存在大量潜在的能形成氢键的位点,因而成为构筑微孔超分子配合物的首选配体。更多还原

【Abstract】 With hydrothermal reactions, we obtained two new microporous supramolecular complexes [Cu(L)(bpe)0.5(H2O)]n(l) and [Zn3(L)3(bpe)5(H2O)3]n·8.5H2O (2) ( H2L = 6-hydroxypyridine -2-carboxylic acid, bpe = l,2-bis(4-pyridine)ethane). Single crystal x-ray diffraction shows that different metal ions result in complexes with different structures, even using the same ligands. In complex 1, there is one crystallographically independent Cu(Ⅱ) ion, which is five-coordinated. Cu(Ⅱ) ions are bridged by L and bpe into 38-membered ring building units and these building units are extended into 2D layers. O-H…O hydrogen bonds exist between these layers, forming a 3D microporous supramolecular network. There are three kinds of metal coordination environments in complex 2. Each Zn(Ⅱ) ion is six-coordinated and bridged by bpe into 2D layer with cavity of about 13×26A2. Self-interpenetration occurs, but a 3D microporous supramolecular network is formed via hydrogen bonds between layers.更多还原