title: (NH4)6[Mn3B6P9O36(OH)3]·4H2O: a new open-framework manganese borophosphate synthesized by using boric acid flux method.
abstract: A new three-dimensional (3-D) open-framework manganese borophosphate, (NH(4))(6)[Mn(3)B(6)P(9)O(36)(OH)(3)]·4H(2)O (denoted as MnBPO-CJ31), has been synthesized by using boric acid flux method. Its anionic framework structure is constructed by the connection of MnO(6) octahedra and BO(4), PO(4) and PO(3)(OH) tetrahedra. It contains 12-ring channels along the [001] direction with a pore diameter of 7.1 Å. It is the first borophosphate featuring a 3-D anionic partial structure with a B/P ratio of 2/3 and an unprecedented fifteen mer tetrahedral fundamental building unit (FBU) [B(6)P(9)O(36)(OH)(3)] exists in this compound. NH(4)(+) ions locate in the void space to balance the negative charge of the inorganic framework. The compound is further characterized by powder XRD, ICP, CHN, TGA and IR analyses. Magnetic study reveals that MnBPO-CJ31 shows interesting canted antiferromagnetic behaviour at low temperature.
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
authors.forename: Weiting
authors.initials: W
authors.lastname: Yang
authors.forename: Jiyang
authors.initials: J
authors.lastname: Li
authors.forename: Tianyi
authors.initials: T
authors.lastname: Na
authors.forename: Jin
authors.initials: J
authors.lastname: Xu
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Jihong
authors.initials: J
authors.lastname: Yu
authors.forename: Ruren
authors.initials: R
authors.lastname: Xu