A non-centrosymmetric borate, Bi2ZnB2O7, has been prepared by solid-state reactions at temperature below 700℃. The single-crystal X-ray structural analysis showed that it crystallizes in the orthorhombic space group Pba2 with a=1.0819(2)nm,b=1.1023(2)nm,c=0.4890(1)nm,Z=4.It has a three dimensional (3D) structure in which [B2O5]4- and [B2O7]8- groups are bridged by [ZnO4]6- tetrahedra through sharing O atoms to form 2D 2∞[ZnB2O7]6- layers that are further bridged by Bi3+ cations giving rise to the final 3D f...
【基金】
Project supported by the Talent Training Funds of Beijing (No. 20051D0501501);
the Funding Project for Academic HumanResources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality;
Beijing Natural Science Foundation (No.2073021)
【更新日期】
2007-11-30
【分类号】
O611.3
【正文快照】
1IntroductionBorates have attracted much attention because they have important practical applications in second harmonicgeneration (SHG). For instance,β-BaB2O4, LiB3O5, CsB3O5, and YCa4(BO3)3O are all well-known nonlinearoptical (NLO) crystals[1]. In the