Abstract

A novel 3D anionic indium phosphatephosphite, formulated as |(C10H10N2)1.5(H3O)3|[In18(H2O)12(HPO4)12(HPO3)16(H2PO3)6] (1), was hydrothermally prepared by using 4, 4-bipyridine (4, 4-bipy) as a structure directing agent (SDA). Single-crystal X-ray diffraction analysis reveals that compound 1 crystallizes in the hexagonal system space group P63/m (No. 176) having unit cell parameters a = 13.7843(19) Å, b = 13.7843(19) Å, c = 28.058(6) Å, V = 4617.0(13) Å3. Compound 1 exhibits a unique pillar-layer open-framework constructed from InO6 octahedra, HPO3 pseudo-tetrahedra and HPO4 tetrahedra, resulting extra-large 16-MRs channels. Synthesis, crystal structure and fluorescence property for compound 1 were reported in this paper.

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