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Updated: Jun 19, 2026
Discovery and Synthesis Optimization of Isoreticular Al(III) Phosphonate-Based Metal-Organic Framework Compounds Using High-Throughput Methods
Published on: October 6, 2023
Syntheses, crystal structures, thermal stabilities, luminescence and magnetism of two 3D pillared metal phosphonates
Ruibiao Fu1, Shengmin Hu, Xintao Wu
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, China.
Abstract:
Two pillared metal phosphonates: [Mn3(4,4'-bipy)(L)2].(4,4'-bipy)0.5 (1) and [Co3(4,4'-bipy)(H2O)2(L)2].(4,4'-bipy)0.5 (2) (L = O3PCH(OH)CO2), have been synthesized hydrothermally, and characterized by single-crystal X-ray diffraction along with powder XRD, EA, IR and TGA. In compounds 1-2, Mn(II) and Co(II) ions are in octahedron coordination geometries and bridged by 2-hydroxyl(phosphono)acetate through -OH, -COO and -PO3 groups into a hybrid layer. The layers are further pillared by the coordinated 4,4-bipy into a 3D neutral framework possessing 1D parallelogram-shaped channels with approximate sizes 9 x 11 A2, which are occupied by the isolated 4,4-bipy. Solid 1 is thermally stable up to 300 degrees C under an air atmosphere and displays a purple-blue luminescence. The results of magnetic measurement indicate solid 1 is a metamagnet.
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