Synthesis and structure determination of a chain-like aluminophosphate obtained with 1,2-diaminopropane as the structure-directing agent

• Published in: The Journal of physics and chemistry of solids 2003-07, Vol.64 (7), p.1097-1103
• Main Authors: Rajic, Nevenka, Logar, Natasa Zabukovec, Golobic, Amalija, Kaucic, Venceslav
• Format: Article
• Language: English
• Subjects: C. X-ray diffraction; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; D. Crystal structure; Exact sciences and technology; Inorganic compounds; Materials science; Materials testing; Physics; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Thermal analysis, differential thermal analysis (DTA), differential thermogravimetric analysis
• ISSN: 0022-3697; 1879-2553
• DOI: 10.1016/S0022-3697(03)00002-7

Colorless plate-like crystals (AlPO-1,2DAP) crystallize from a clear ‘AlPO 4-1,2-diaminopropane’ reaction system. The results of elemental, thermal and FTIR analyses give the following chemical formula: (NH 4 +)(1,2-H 2DAP) 2+(AlP 2O 8) 3−, confirmed also by single crystal structure determination. The X-ray diffraction data collected at 150 K reveal the space group Pc2 1n with a=8.2788(2), b=16.7882(3), c=8.6608(2) Å, and V=1203.73(5) Å 3. The AlPO-1,2DAP has a chain structure related to the aluminophosphate AlPO-enA structure. Two occluded cations, NH 4 + and doubly protonated diamine, balance the negative charge and interact with the chain oxygen atoms via hydrogen bond network.