期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 18, 期 34, 页码 10595-10601出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201103433
关键词
charge flipping; electrical conductivity; metal-organic frameworks; porous materials; X-ray diffraction
资金
- U.S. Department of Energy [DE-FG02-08ER15935]
- BASF SE (Ludwigshafen, Germany)
- Spain Ministry of Education
- WCU (EEWS), Korea
A new family of porous crystals was prepared by combining 1H-1,2,3-triazole and divalent metal ions (Mg, Mn, Fe, Co, Cu, and Zn) to give six isostructural metal-triazolates (termed MET-1 to 6). These materials are prepared as microcrystalline powders, which give intense X-ray diffraction lines. Without previous knowledge of the expected structure, it was possible to apply the newly developed charge-flipping method to solve the complex crystal structure of METs: all the metal ions are octahedrally coordinated to the nitrogen atoms of triazolate such that five metal centers are joined through bridging triazolate ions to form super-tetrahedral units that lie at the vertexes of a diamond-type structure. The variation in the size of metal ions across the series provides for precise control of pore apertures to a fraction of an Angstrom in the range 4.5 to 6.1 angstrom. MET frameworks have permanent porosity and display surface areas as high as some of the most porous zeolites, with one member of this family, MET-3, exhibiting significant electrical conductivity.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据