Hydrothermal synthesis and crystal structure of strontium iodate, Sr(IO 3) 2

• Published in: Journal of alloys and compounds Vol. 381; no. 1; pp. 229 - 233
• Main Authors: Chen, Xuean, Xiao, Weiqiang, Chang, Xinan, Zang, Hegui
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 03.11.2004; Elsevier
• Subjects: Condensed matter: structure, mechanical and thermal properties; Crystal growth; Exact sciences and technology; Inorganic compounds; Insulators; Physics; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; X-ray diffraction; Crystal growth; X-ray diffraction; Insulators; Strontium Iodates; Monocrystals; Lamellar structure; Space groups; Hydrothermal synthesis; XRD; Crystal structure
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2004.02.051

Strontium iodate, Sr(IO 3) 2, has been prepared by hydrothermal reactions at 170 °C. The X-ray single-crystal structural analysis showed that it crystallizes in a new structure type with space group P 1 ̄ , a=7.0130(7) Å, b=7.0520(8) Å, c=13.088(1) Å, α=84.12(1)°, β=84.80(1)°, γ=63.48(1)°, Z=4, R1/wR2=0.0442/0.1019 for 2109 observed reflections and 158 parameters. The crystal structure of Sr(IO 3) 2 consists of pyramidal IO 3 − anions and Sr 2+ cations, which are alternately arranged along the a-axis in a 2:1 ratio to form a layer-like structure. Infrared spectra further confirmed that the compound contains low symmetric IO 3 − groups.