ChemInform Abstract: A 3,4-Connected Beryllium Phosphite Framework Containing 24-Ring Channels with a Very Low Density.
✍ Scribed by Xiuchao Luo; Daibing Luo; Hongmei Zeng; Maochu Gong; Yaoqiang Chen; Zhien Lin
- Publisher
- John Wiley and Sons
- Year
- 2011
- Weight
- 21 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
a Very Low Density. -The new organically templated three-dimensional open-framework compound (BuNH3)2[Be3(HPO3)4] is solvothermally synthesized from a mixture of BeSO4, H3PO3, BuNH2, andEtOH (autoclave, 170 °C, 5 d, 71% yield). The compound crystallizes in the trigonal space group R3 with Z = 18 (single crystal XRD). Strictly alternating BeO 4 tetrahedra and HPO 3 pseudopyramids create a three-dimensional inorganic framework with extra-large tubular channels whose cross sections are delimited by 24-and 30-ring windows. The organic cations within the tubular channels can be partially exchanged by inorganic cations with the preservation of the original framework. The compound has a very low density of 1.369 g cm -3 . -