Citation: Heng Zhen SHI, Yong Kui SHAN, Li Yi DAI, Yu Yan LIU. Open-framework Borophosphate:(NH₄)_0.5Fe_0.5^ⅡFe_0.5^Ⅲ·(H₂O)₂ BP₂O₈·0.5 H₂O[J]. Chinese Chemical Letters, ;2003, 14(7): 744-747. shu

Open-framework Borophosphate:(NH₄)_0.5Fe_0.5^ⅡFe_0.5^Ⅲ·(H₂O)₂ BP₂O₈·0.5 H₂O

1.
Department of Chemistry, East China Normal University, Shanghai 200062;
2.
Laboratory for Quantum Optics of National Education Commission, East China Normal University, Shanghai 200062

Received Date: 27 August 2002

Fund Project: We thank the national Natural Science Foundation (No.20173017) of China and State Key Basic Program (No.G2000048) for financial support.

An open-framework ammonium ferricborophosphate compound was synthesized by mild hydrothermal condition at 110℃. The crystal structure has been determined by single-crystal X-ray diffraction analysis:hexagonal, P6₅22, a=9.452(2)A, c=15.698(5)A,α=90°,γ=120°,Z=6, M_r=310.58, V=1214.0(5)A³, D_c=2.549 g/cm³, μ=2.311mm^-1, F(000)=930. The chiral tetrahedral-tetrahedral helical ribbons are linked by the mixed valance Fe^Ⅱ/Fe^ⅢO₆coordinated octahedra. The ammonium ions are located inside the free loop of helical ribbons close to the inner wall of the helical channels _∞{[BP₂O₈]^3-}, effecting on balancing charge and stabilizing helical ribbons.
- Open-framework,
- borophosphate,
- single crystal,
- synthesis
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