CdZn2KB2O6F, a new fluoride borate crystal
作者： Fan Zhang , Z-W Jiao , D-Z Shen , G-Q Shen , X-Q Wang
DOI: 10.1107/S0108270109050069
关键词:
摘要: During an attempt to grow crystals of the nonlinear optical material Cd3Zn3B4O12 using a KBF4 flux, new cadmium dizinc potassium borate fluoride compound, CdZn2KB2O6F, were unexpectedly isolated. The structure consists layers constructed distorted corner-sharing ZnO3F tetrahedra and BO3 triangles. Both Zn B reside on threefold rotation axes, while F− anion is located at site 3.2 symmetry. CdII (site symmetry \overline{3}) K+ 3.2) ions occupy six- nine-coordinate interlayer sites, respectively. triangles ZnO3 pyramids from share bridging O atoms with each other form extended [ZnBO3] layer parallel (001). Although these are similar [MBO3] seen in compounds, they uniquely bridged here by Cd centres anions three-dimensional framework. In so doing, series channels formed along [010] direction cations found channels.
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