[C6N4H24]CoBe6P6O24•3H2O:: a novel 3-dimensional beryllophosphate zeolite-like structure encapsulating CoII ions

被引:19
|
作者
Zhang, HY [1 ]
Weng, LH [1 ]
Zhou, YM [1 ]
Chen, ZX [1 ]
Sun, JY [1 ]
Zhao, DY [1 ]
机构
[1] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
关键词
D O I
10.1039/b106643a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A novel cobalt beryllophosphate (CBP-CHA) with the chabazite framework topology has been hydrothermally synthesized by using a metal amine complex as a starting material. The structure was solved by single-crystal X-ray diffraction {crystal data for [C6N4H24]CoBe6P6O24 . 3H(2)O: M = 889.14, rhombohedral, space group R (3) over bar, a=12.380(3), b=12.380(3), c=14.558(5)Angstrom, V=1932.5(10) Angstrom(3), Z=3, R-1=0.0878, R-w=0.1929}. The compound is unusual in that it is not only the first organically-templated CoBePO4 phase, but it is also the first instance where Co-II ions are trapped in the double 6-ring (D6R) of the structure of CBP-CHA. A cobalt atom locates at the 3-fold axis in each D6R, chemically bonding to framework oxygen atoms and leading to contraction of the D6R. CBP-CHA has 3-dimensional 8-ring channels along the crystallographic [100] and [010] directions. The framework charges of CBP-CHA are balanced by both the protonated amines in the channel and Co-II ions trapped in the D6R.
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页码:658 / 662
页数:5
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