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Three new lanthanide coordination polymers containing isophthalate and 1,10-phenanthroline |
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| Authors: | Yong-Hong Wan Lin-Pei Jin |
| Affiliation: | a Department of Chemistry, Beijing Normal University, Beijing 100875, China b Department of Chemistry, Anyang Teacher College, AnYang, Henan 455000, China |
| Abstract: | Three lanthanide coordination polymers were prepared by hydrothermal synthesis and characterized by single-crystal X-ray diffraction. [Pr2(mBDC)3(phen)(H2O)]n·0.5nH2O (1) (mBDC=isophthalate, phen=1,10-phenanthroline) exhibits two kinds of metal environments (coordination numbers 7 and 8). In complex 1, mBDC ligands adopt the tetradentate (bridging and bridging) coordination mode and connect Pr ions into an undulating layer, and a 3D supramolecular structure is formed via hydrogen bonds between adjacent layers. [Tb4(mBDC)6(phen)]n (2) has three types of metal environments (coordination numbers 6, 7 and 8) and is composed of a 3D network formed by mBDC linking Tb ions via tetradentate (bridging and bridging) and pentadentate (bridging/chelating and bridging) coordination modes. There are two kinds of small quadrilateral channels along the a-axis. [Er4(mBDC)6(phen)]n (3) is isostructural to complex 2. |
| Keywords: | Lanthanide Isophthalate Coordination polymer Hydrothermal synthesis X-ray diffraction |
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