Facile Assembly of an Unusual Lead Borate with Different Cluster Building Units via a Hydrothermal Process

Pb­(BO2)2·H2O as sources of B and Pb via a simple hydrothermal process provided the first binodal 5,9-connected lead borate, Pb6B4O11(OH)2 (1). Compound 1 crystallizes in the orthorhombic space group Pnma. The crystal structure is composed of different cluster building units of B4O9 and Pb6O4. Compound 1 has an optical band gap of 3.24 eV.以一水合偏硼酸铅（Pb(BO₂)₂·H₂O）作为硼源与铅源，通过简易水热法首次制备得到首例双节点5,9-连接型硼铅酸盐Pb₆B₄O₁₁(OH)₂（标记为化合物1）。该化合物结晶于正交晶系空间群Pnma，其晶体结构由B₄O₉簇与Pb₆O₄簇两类不同的簇结构基元构筑而成，光学带隙为3.24 eV。