A new layered fluoroaluminophosphate \\[Al2(PO4)2(H2O)2F2\](compound Ⅰ) was synthesized hydrothermally. It crystallizes in the monoclinic space group P21/c with a=1.102 40(7) nm, (b=0.695 51(4) nm,) c=0.9...A new layered fluoroaluminophosphate \\[Al2(PO4)2(H2O)2F2\](compound Ⅰ) was synthesized hydrothermally. It crystallizes in the monoclinic space group P21/c with a=1.102 40(7) nm, (b=0.695 51(4) nm,) c=0.928 05(5) nm, β=111.027(3)°, Z=6, R1=0.037 9, wR2=0.079 2(all data). Its structure contains \[Al2(PO4)2(H2O)2F2\]2- macroanonic sheets built up from PO3(O) tetrahedra and AlO3F2(H2O) octahedra to form three-, four-, six-membered ring-net stacked sheets in an AAAA sequence along \ direction. The sheets are held together by diprotonated piperazine cations decomposed from 1-methylpiperazine through extensive hydrogen bonds.展开更多
文摘A new layered fluoroaluminophosphate \\[Al2(PO4)2(H2O)2F2\](compound Ⅰ) was synthesized hydrothermally. It crystallizes in the monoclinic space group P21/c with a=1.102 40(7) nm, (b=0.695 51(4) nm,) c=0.928 05(5) nm, β=111.027(3)°, Z=6, R1=0.037 9, wR2=0.079 2(all data). Its structure contains \[Al2(PO4)2(H2O)2F2\]2- macroanonic sheets built up from PO3(O) tetrahedra and AlO3F2(H2O) octahedra to form three-, four-, six-membered ring-net stacked sheets in an AAAA sequence along \ direction. The sheets are held together by diprotonated piperazine cations decomposed from 1-methylpiperazine through extensive hydrogen bonds.