title: Gallium tris(iodate), Ga(IO3)3.
abstract: Ga(IO(3))(3) crystallizes in the space group P6(3), with the Ga atom at a site with imposed threefold symmetry. The crystal structure consists of slightly distorted GaO(6) octahedra that are bridged by I atoms of IO(3)(-) groups, giving rise to a three-dimensional polar network. The framework contains unoccupied hexagonal channels running parallel to the hexagonal [001] direction. The iodate groups have their stereochemically active non-bonded electron pairs pointing in the same direction along [001], which creates the polarity in the structure. The I-O bond distances and O-I-O angles are normal, being in the ranges 1.783 (3)-1.847 (2) A and 94.68 (11)-99.61 (12) degrees , respectively.
authors.affiliation: College of Materials Science and Engineering, Beijing University of Technology, Ping Le Yuan 100, Beijing 100022, People's Republic of China. xueanchen@bjut.edu.cn
authors.forename: Xue-An
authors.initials: XA
authors.lastname: Chen
authors.forename: Hai-Ping
authors.initials: HP
authors.lastname: Xue
authors.forename: Xin-An
authors.initials: XA
authors.lastname: Chang
authors.forename: He-Gui
authors.initials: HG
authors.lastname: Zang
authors.forename: Wei-Qiang
authors.initials: WQ
authors.lastname: Xiao