Synthesis, crystal structure, and properties of new lead barium borate with B3O6 plane hexagonal rings

The material exhibits a three-dimensional layer-like structure along the [001] direction consisting of interconnecting Pb/Ba1O6 groups, Ba2O9 units and B3O6 plane hexagonal rings. The planar B3O6 groups are parallel to the (001) plane and distributed layer upon layer along the c-axis, and the Pb/Ba1 and Ba2 atoms are alternately locate between the B3O6 sheets.200