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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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9912463 | PMC |
http://dx.doi.org/10.1107/S2056989023000555 | DOI Listing |
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