Solution-mediated Synthesis of a Three-dimensional Zinc Phosphate in the Presence of a Monoamine
A new open-framework zinc phosphate of the formula [C2H5NH3]2[Zn2(HPO4)3], I, has been synthesized at 60°C in a THF-water medium in the presence of ethylamine. The structure consists of a network of strictly alternating ZnO4 and PO4 tetrahedra forming 4- and 8-membered rings, which connect to form intersecting elliptical channels bound by 12- and 8-T atoms (T = Zn, P) along the c and b axes, respectively. The amine molecule sits in the channel bound by 12-T atoms and the -OH group of the HPO4 unit protrudes into the 8-membered channel. An interesting feature of I is that it has a very low framework density. Crystal data: [C2H5NH3]2[Zn2(HPO4)3], monoclinic, C2/c (no. 15), a = 17.351(4), b = 9.507(5), c = 9.806(5) Å, β = 102.68(2)°, V = 1578.3(1) Å3, Z = 4.
A. Choudhury et al., "Solution-mediated Synthesis of a Three-dimensional Zinc Phosphate in the Presence of a Monoamine," Journal of Materials Chemistry, Royal Society of Chemistry, Jan 2000.
The definitive version is available at http://dx.doi.org/10.1039/B004972G
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