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

Zabukovec Logar, Natasa; Rajic, Nevenka; Stojakovic, Djordje; Golobic, Amalija; Kaucic, Venceslav

doi:10.1351/pac200577101707

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

http://dx.doi.org/10.1351/pac200577101707

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

Natasa Zabukovec Logar¹, Nevenka Rajic^1,2, Djordje Stojakovic², Amalija Golobic³ and Venceslav Kaucic^1,4

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.