摘要
An open-framework ammonium ferricborophosphate compound was synthesized by mild hydrothermal condition at 110C. The crystal structure has been determined by single-crystal X-ray diffraction analysis: hexagonal, P6522, a = 9.452(2) , c = 15.698(5) , a = 90, g = 120, Z = 6, Mr = 310.58, V = 1214.0(5) 3, Dc = 2.549 g/cm3, m = 2.311mm-1, F(000) = 930. The chiral tetrahedral-tetrahedral helical ribbons are linked by the mixed valance FeII/FeIIIO6 coordinated octahedra. The ammonium ions are located inside the free loop of helical ribbons close to the inner wall of the helical channels1{[BP2O8]3-}, effecting on balancing charge and stabilizing helical ribbons.
基金
We thank the national Natural Science Foundation(No.20173017)of China
State Key Basic Program(No.G2000048)for financial support.
