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Pure Appl. Chem., 2005, Vol. 77, No. 10, pp. 1707-1717

Synthesis and single-crystal structure analysis of a new layered zinc phosphate

Natasa Zabukovec Logar1, Nevenka Rajic1,2, Djordje Stojakovic2, Amalija Golobic3 and Venceslav Kaucic1,4

1 National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
2 Faculty of Chemical Technology and Metallurgy, University of Belgrade, Karnegijeva 4,11000 Belgrade, Serbia
3 Faculty of Chemistry and Chemical Technology, University of Ljubljana, Askerceva 5, 1000 Ljubljana, Slovenia
4 Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia

Abstract: A new 2D zinc phosphate [H3NCH(CH3)CH2NH3]2+0.75[COOH(CH2)COOH]0.25(Zn3P3O11OH)2-* 0.5NH4+ consists of zinc phosphate layers, which are intercalated by diprotonated 1,2-diaminopropane, malonic acid, and NH4+ ions. The inorganic layers are composed of alternating ZnO4 and PO4 (PO3OH) tetrahedra that form 8-membered ring apertures. The intercalated species strongly interact with the zinc phosphate layers through hydrogen bonds, which is a key factor in stabilizing the structure. Crystal data: monoclinic, P21/a, a = 8.3457(1) Å, b = 16.8953(3) Å, c = 10.1817(2) Å, β = 95.3121(8)°, Z = 4, R = 0.0423.