Crystal structures of CdTi2O4(OH)2 and LaTiSbO6

The crystal structures of two PbSb2O6-type compounds containing titanium, CdTi2O4(OH)2 and LaTiSbO6 were refined by X-ray powder diffraction data. For both compounds structure refinements with the space group P 3 ¯ 1 m were successful and the R-factors were RWP = 6.46% and RP = 4.90% for CdTi2O4(OH)2 and RWP = 9.55% and RP = 7.17% for LaTiSbO6. These crystal structures were the same as that of the typical PbSb2O6-type compound in spite of the existence of protons in the interlayer or two different metal ions in the layer.