Crystal structure of the solid solution Ba8.35Pb0.65(B3O6)6.
Single crystals of lead barium borate, Ba8.35Pb0.65(B3O6)6, octabarium lead(II) hexa-kis-(triborate), have been obtained by spontaneous nucleation from a high-temperature melt. Its three-dimensional structure is constructed on the basis of a BaO9polyhedron, a (Pb/Ba)O6octa-hedron (occupancy ratio Pb:Ba = 0.216:0.784) and a condensed B3O6ring anion. In the crystal, the planar B3O6anions are stacked in an alternating fashion with Ba and (Pb/Ba) atoms along [001]. A comparison is made with the structures of related solid solutions in the system Ba/Pb/B/O.
Department of Environmental and Chemical Engineering, Tangshan College, 38 North HuaYan Road, Tangshan 063000, Hebei, People's Republic of China.
Wenwu
W
Zhao
borate; crystal structure; solid solution; spontaneous nucleation