Issue 51, 2014

Dimensionality changes in the solid phase at room temperature: 2D → 1D → 3D evolution induced by ammonia sorption–desorption on zinc phosphates

Abstract

Two-dimensional zinc phosphate NH4Zn2(PO4)(HPO4) (1), via ammonia vapor interaction at room temperature, transforms to a one-dimensional novel compound NH4Zn(NH3)PO4 (2). By ammonia desorption (in air at room temperature) 2 transforms to NH4ZnPO4 (3) with a well-known ABW-zeolitic topology. The crystal structure of 2 was solved ab initio using synchrotron powder X-ray diffraction data (monoclinic, P21/a, a = 16.5227(2) Å, b = 6.21780(8) Å, c = 5.24317(6) Å, β = 91.000(2)°, Z = 4). The structures of three compounds include extra-framework ammonium cations to the 4-fold coordinated zinc (ZnO4 tetrahedra for 1 and 3, and ZnO3N tetrahedra for 2) and phosphorus (PO4 tetrahedra) with bi-, mono- or three-dimensional linkages, respectively for 1, 2 or 3. To our knowledge, the process described here constitutes the first example of dimensionality change in the solid phase promoted by a solid–gas interaction at room temperature in metal phosphates.

Graphical abstract: Dimensionality changes in the solid phase at room temperature: 2D → 1D → 3D evolution induced by ammonia sorption–desorption on zinc phosphates

Supplementary files

Article information

Article type
Communication
Submitted
19 Feb 2014
Accepted
30 Apr 2014
First published
02 May 2014

Chem. Commun., 2014,50, 6729-6732

Author version available

Dimensionality changes in the solid phase at room temperature: 2D → 1D → 3D evolution induced by ammonia sorption–desorption on zinc phosphates

Z. Amghouz, B. Ramajo, S. A. Khainakov, I. da Silva, G. R. Castro, J. R. García and S. García-Granda, Chem. Commun., 2014, 50, 6729 DOI: 10.1039/C4CC01314J

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