Zhenxia, C; Yaming, Z; Linhong, W; Dongyuan, Z
Six zinc phosphonocarboxylate hybrid materials, namely, Zn 2(pbc) 2·2Hdma·DMF·H 2O ( 1), Zn 2(pbc) 2·H 2teta·H 2O ( 2), Zn(pbc)·H 3O ( 3), Zn 4(pbc) 3·HTEA ( 4), Zn 3(pbc) 2(en) 2( 5), and Zn 3(pbc) 2(H 2O) ( 6) (H 3pbc = 4-phosphono-benzoic acid, DMF = N, N-dimethylformamide, dma = dimethylamine, teta = triethylene tetramine, TEA = triethylamine, en = ethylenediamine) have been synthesized using organic amines as structure-directing agents under mixed-solvothermal condition. These new compounds have been characterized by X-ray single-crystal diffraction together with infrared (IR) spectroscopy, thermogravimetric (TG) analysis, and powder X-ray diffraction (XRD). In structures 1and 2, the double crankshaft chains constructed by the corner-sharing of ZnO 4and CPO 3tetrahedra are cross-linked by the organic moieties of the ligands into three-dimensional (3-D) structures with GIS (gismondine) and GIS-related zeolite topologies. In structure 3, the connectivity between ZnO 4and CPO 3results in inorganic (4.6.12) sheets, which are pillared by the benzoic acid group −C 6H 5−COO− into a 3-D open framework structure with zeolitic SOD (sodalite) topology. Structures 4− 6are pillar-layered structures where the Zn−O−P layers show different configuration due to the directing effect from different organic amines and solvents employed during the synthesis. The results show that the amines and organic solvents acting as structure-directing agents along with control of reaction condition are effective in achieving varieties of zinc phosphonocarboxylate structures. [ABSTRACT FROM AUTHOR] Copyright of Crystal Growth & Design is the property of American Chemical Society and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts)