详细信息    查看全文

• 作者：Li Wang ; Shilie Pan ; Lixian Chang ; Jianyang Hu ; Hongwei Yu
• 刊名：Inorganic Chemistry
• 出版年：2012
• 出版时间：February 6, 2012
• 年：2012
• 卷：51
• 期：3
• 页码：1852-1858
• 全文大小：502K
• 年卷期：v.51,no.3(February 6, 2012)
• ISSN：1520-510X

文摘

A new noncentrosymmetric polyborate, Ba₂[B₆O₉(OH)₄], has been synthesized under a hydrothermal condition. The polyborate contains chiral layers constructed by two kinds of helical chains and also form new B₁₈O₄₂ circles based on B₃O₈ units [(3: 螖+2T)]. One kind of Ba atom locates in the cavity surrounded by the B₁₁O₁₁ ring within the anion layer, and the other kind of Ba atom inserts between two adjacent layers. UV鈥搗is diffuse reflectance spectroscopy demonstrates that the compound has a cutoff edge below 190 nm and has a large second-harmonic generation (SHG) effect, which is approximately 3 times that of KH₂PO₄ (KDP) and is type-I phase matchable.