Syntheses and structures of ammonium transition-metal dialuminium tris-(phosphate) dihydrates (NH)Al(PO)·2HO ( = Mn and Ni).

Acta Crystallogr E Crystallogr Commun

Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.

Published: January 2023

AI Article Synopsis

  • The structures of ammonium manganese(II) and ammonium nickel(II) dialuminium tris-(phosphate) dihydrate were analyzed using single-crystal diffraction techniques.
  • These compounds are similar to a previously studied cobalt aluminophosphate, depicting a three-dimensional network formed by aluminum and phosphate moieties.
  • Both structures feature a unique arrangement where ammonium and transition-metal cations occupy channels within the aluminophosphate framework, aligning with specific crystallographic axes.

Article Abstract

The structures of ammonium manganese(II) dialuminium tris-(phosphate) dihydrate, (NH)MnAl(PO)·2HO, and ammonium nickel(II) dialuminium tris-(phosphate) dihydrate, (NH)NiAl(PO)·2HO, were determined using single-crystal diffraction data. The structures of title compounds are isotypic to cobalt aluminophosphate, (NH)CoAl(PO)·2HO (LMU-3) [Panz (1998 ▸). , , 73-82], in which a three-dimensional network of vertex-sharing AlO and PO moieties delineate twelve-membered channels in which ammonium, NH , and transition-metal cations ( = Mn and Ni) reside as charge compensators for the anionic [Al(PO)] aluminophosphate framework. In both structures, the N atom of the ammonium cation, the transition-metal ion and one of the P atoms lie on crystallographic twofold axes.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9912463PMC
http://dx.doi.org/10.1107/S2056989023000555DOI Listing

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