Determination of Crystal Structure of Cd 3 (BO 3 ) 2 by Powder X-Ray Diffraction

Abstract Cd 3 (BO 3 ) 2 was prepared by a solid state reaction between B(OH) 3 and Cd(OH) 2 at low temperatures ranging between 523° and 623° and at a pressure of 10 −4 – 10 −5 Hg mm. The crystal structure has been refined by Rietveld analysis of X-ray powder diffraction data. The compound crystallizes in the orthorhombic system, space group Pnnm, Z = 2, with cell parameters of a = 5.967(5) Å, b = 4.78 (0) Å and c = 9.009(5) Å.