| Synthesis and Crystal Structure of a Novel Ternary Borate, NaSrB5O9 |
| |
| 作者姓名： | 陈学安 左建龙 常新安 臧和贵 肖卫强 |
| |
| 作者单位： | College of Materials Science and Engineering Beijing University of Technology，College of Materials Science and Engineering Beijing University of Technology，College of Materials Science and Engineering Beijing University of Technology，College of Materials Science and Engineering Beijing University of Technology，Institute of Microstructure and Property of Advanced Materials Beijing University of Technology，Beijing 100022 China Beijing 100022 China Beijing 100022 China Beijing 100022 China，Beijing 100022 China |
| |
| 基金项目： | the Talent Training Funds of Beijing
,
the Funding Project for Academic Human Resources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality
,
北京市自然科学基金 |
| |
| 摘 要： | A novel ternary borate, sodium strontium pentaborate, NaSrB5O9, has been prepared by solid-state reaction below 800 ℃. The single-crystal X-ray structural analysis showed that NaSrB5O9 crystallizes in monoclinic, space group P21/c with a = 6.499(2), b = 13.979(3), c = 8.045(2) , β = 106.92(2)°, V = 699.2(3) 3, Z = 4, Mr = 308.66, Dc = 2.932 g/cm3, μ = 7.804 mm-1, F(000) = 584, R = 0.0264 and wR = 0.0621 for 2426 observed reflections and 146 variables. NaSrB5O9 is a layered compound containing double ring B5O11 building units composed of two BO4 tetrahedra and three BO3 triangles. Each B5O11 unit is connected to four other equivalent units through exocyclic oxygen atoms to form a two-dimensional ∞2 B5O9]3- layer. Symmetry-center related layers are stacked along the b axis and held together by Na+ and Sr2+ cations via electrostatic interactions.
|
| 关 键 词： | NaSrB5O9 硼酸盐 合成 晶体结构 |
| 收稿时间： | 2006-12-26 |
| 修稿时间： | 2007-04-02 |
Synthesis and Crystal Structure of a Novel Ternary Borate,NaSrB5O9 |
| |
| CHEN Xue-An,ZUO Jian-Long,CHANG Xin-An,ZANG He-Gui,XIAO Wei-Qiang.Synthesis and Crystal Structure of a Novel Ternary Borate, NaSrB5O9[J].Chinese Journal of Structural Chemistry,2007,26(9):1081-1086. |
| |
| Authors: | CHEN Xue-An ZUO Jian-Long CHANG Xin-An ZANG He-Gui XIAO Wei-Qiang |
| |
| Abstract: | A novel ternary borate, sodium strontium pentaborate, NaSrB5O9, has been prepared by solid-state reaction below 800 ℃. The single-crystal X-ray structural analysis showed that NaSrB5O9 crystallizes in monoclinic, space group P21/c with a = 6.499(2), b = 13.979(3), c - 8.045(2) (A), β = 106.92(2)° , V = 699.2(3) (A)3, Z = 4, Mr = 308.66, Dc = 2.932 g/cm3, μ = 7.804 mm-1, F(000) = 584, R = 0.0264 and wR = 0.0621 for 2426 observed reflections and 146 variables. NaSrB5O9 is a layered compound containing double ring B5O11 building units composed of two BO4 tetrahedra and three BO3 triangles. Each B5O11 unit is connected to four other equivalent units through exocyclic oxygen atoms to form a two-dimensional 2∞B5O9]3- layer. Symmetry-center related layers are stacked along the b axis and held together by Na and Sr2 cations via electrostatic interactions. |
| |
| Keywords: | NaSrB5O9 borate synthesis crystal structure Borate Ternary Novel Crystal Structure electrostatic interactions related layers axis units four equivalent oxygen atoms form layered compound containing double ring building |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
