Hydrothermal synthesis and crystal structure of a three-dimensional metal selenite containing double helical chains: Fe-3(H2O)(SeO3)(3)

作者：Xiao DR; Hou Y; Wang EB^*; An HY; Lu H; Li YG; Xu L; Hu CW

来源：Journal of Solid State Chemistry, 2004, 177(8): 2699-2704.

DOI：10.1016/j.jssc.2004.04.024

• metal selenite
• helical chains
• hydrothermal synthesise
• crystal structure

A novel three-dimensional (3D) transition metal selenite Fe-3(H2O)(SeO3)(3) (1) has been hydrothermally synthesized and characterized by the elemental analyses, IR spectrum, TG analysis and the single-crystal X-ray diffraction. Compound 1 crystallizes in the triclinic system, space group P (1) over bar, with a = 8.0916(16) Angstrom, b = 8.2089(16) Angstrom, c = 8.5679(17) Angstrom, alpha = 69.21(3)degrees, beta = 62.74(3)degrees, gamma = 67.16(3)degrees, Z = 2, and R-1[I > 2sigma(I)] = 0.0379. Compound 1 exhibits an interesting 3D framework formed by {FeO6} octahedra and {SeO3} trigonal pyramids via the corner- and/or edge-sharing mode. Furthermore, compound 1 consists of left-handed and right-handed helical chains, which are further entangled to form the double helical chains.

• 出版日期2004-8
• 单位东北师范大学