The database of open-framework aluminophosphate(AlPO) syntheses has been established,which includes about 1600 synthetic records.Data analysis has been done on the basis of the framework composition,structure dimension,pore ring,and organic template.This database will serve as useful guidance for the rational synthesis of microporous functional materials.
YAN Yan1,LI JiYang1,QI Miao2,ZHANG Xiao1,YU JiHong1 & XU RuRen1 1 State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,Jilin University,Changchun 130012,China
With N,N′-dimethylpiperazine(DMPIP) as the structure-directing agent, a zinc phosphate [Zn6(H2O)· P5O20][C5N2H14][C6H16N2]0.5·3H2O(1) with a novel three-dimensional(3D) open-framework architecture was hydrothermally synthesized. Its structure was determined by single-crystal X-ray diffraction analysis and further characterized by ICP, NMR, and TG analyses. Compound 1 crystallized in the triclinic space group P1(No.2) with a=0.9984(2) nm, b=1.2354(3) nm, c=1.2384(3) nm, α=88.32(3)°, β=74.57(3)°, γ=75.81(3)° and Z=2. The alternation arrrangement of tetrahedral Zn units[ZnO4 and ZnO3(H2O)] and PO4 units forms an anionic 3D open framework containing intersecting 16-, 10- and 8-ring channels. Water molecules, diprotonated DMPIP, and diprotonated N-methyl-piperazine(MPIP) decomposed from DMPIP, are located in the channels and interact with the host framework via H-bonds. Compound 1 transforms to another new phase(compound 2) upon calcination at 200―350°C with the removal of the water coordinated to Zn atoms in the lattice. The phase transformation of compound 2 was further studied.
A new one-dimensional(1D) fluoroaluminophosphate chain(C 4 H 15 N 3 )[AlPO 4 F 2 ](denoted AlPO-CJ28) was synthesized in the concentrated fluoride synthetic medium with a gel composition of 1.0Al(OPr i ) 3 :1.0H 3 PO 4 : 5.4DETA:1.3HF:2.0H 2 O(DETA=diethylenetriamine). The reagents were mixed directly without introducing addi- tional water solvent. The 1D chain is constructed by alternating AlO 2 F 2 and doubly bridging PO 4 tetrahedra to form the simplest serrate chain. AlPO-CJ28 can be transformed to another 1D aluminophosphate chain AlPO-CSC upon further crystallization at 230 °C.
LIU Yang HAN Yi-de LI Yi SONG Xiao-wei LI Ji-yang YU Ji-hong XU Ru-ren
