2(IO 3)(IO 6): First combination of [IO 3] ? and [IO 6] 5? anions in three-dimensional framework]]>

摘要

A new bismuth (III) iodate periodate, Bi2(IO3)(IO6) was obtained from hydrothermal reactions using Bi(NO3)3·5H2O, and H5IO6as starting materials. Bi2(IO3)(IO6) crystallizes in the monoclinic space groupP21/c(No. 14) with lattice parametersɑ?=?8.1119(6),b?=?5.4746(4),c?=?16.357(1) ?,β?=?99.187(2)°,V?=?717.07(9) ?3,Z?=?4. The structure of Bi2(IO3)(IO6) features a three-dimensional framework which is a combination of [Bi(1)O5] tetragonal pyramids, [Bi(2)O8] bicapped trigonal prisms and [IO3]?and [IO6]5?anions. Thermal analysis shows that the compound is thermally stable up to about 350?°C. The solid state UV-vis-NIR diffuse reflectance spectrum indicates that Bi2(IO3)(IO6) is a semiconductor with a band gap of 2.76?eV.