Synthesis and crystal structure of a novel ternary oxoborate, PbBiBO4

A novel ternary borate oxide, lead bismuth boron tetraoxide, PbBiBO4, has been prepared by solid-state reaction at temperature below 800 °C. The single-crystal X-ray structural analysis showed that PbBiBO4 crystallizes in the monoclinic space group P21/n with image, image, image, image, image. It represents a new structure type in which distorted BiO69− octahedra are connected to each other in corner- and edge-sharing manner to form two-dimensional image layers that are bridged by B atoms of BO3 triangles giving rise to a three-dimensional image framework, with channels parallel to the [0 1 0] direction accommodating the pyramidally coordinated Pb2+ cations.