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
1National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia; 2Faculty of Chemical Technology and Metallurgy, University of Belgrade, Karnegijeva 4,11000 Belgrade, Serbia; 3Faculty of Chemistry and Chemical Technology, University of Ljubljana, Askerceva 5, 1000 Ljubljana, Slovenia; 4Biotechnical 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.
Keywords: Layered; zinc phosphate; open framework; low-dimensional; ZPAM.
*Paper based on a presentation at the 4th International Conference of the Chemical Societies of the South-Eastern European Countries (ICOSECS-4), Belgrade, Serbia and Montenegro, 18-21 July 2004. Other presentations are published in this issue, pp. 1655-1752.