中国科学院青海盐湖研究所机构知识库
Advanced  
ISL OpenIR  > 青海盐湖研究所知识仓储  > 期刊论文
题名: Amorphous Structure of Diboron Trioxide and Sodium Pentaborate Hydrate
作者: 周永全 ;  房艳 ;  Cao Lingdi ;  Zhu Fayan ;  房春晖
刊名: ACTA CHIMICA SINICA
出版日期: 2011
卷号: 69, 期号:1, 页码:46-52
关键词: amorphous ;  X-ray diffraction ;  diboron trioxide hydrate ;  sodium
英文摘要: We determined the structures of amorphous diboron trioxide and sodium pentaborate hydrate by X-ray diffractometry. Radial distribution functions (RDF) of those samples were obtained from precisely diffraction data processing. Their short-range ordered structures were determined by model design and quantitative calculations. In amorphous diboron trioxide hydrate, 75% of boron atoms construct planar six-membered boroxol ring and the interatomic distance and the interactions numbers of intra-ring ortho-B -O, meta-O-O, meta-B B and para-B-O were listed out, where boron-oxygen branched-chain intersects with the plane at a terminal-oxygen with a intersect angle of 125 degrees +/- 15 degrees. The basic structure unit of non-crystalline sodium pentaborate hydrate is formed by two planar six-membered boroxol rings deformed, composed of two boron-oxygen triangles (B(Delta)) and a boron-oxygen tetrahedron (B(square)), through the shared B(square). The highly ordered intra-anion interactions are the upmost interactions. Six coordinated Na(+) connects with the terminal-oxygen of pentaborate to form a contact ion pair with a characteristic distance (B-Na) of 0.330 nm. We determined the structures of amorphous diboron trioxide and sodium pentaborate hydrate by X-ray diffractometry. Radial distribution functions (RDF) of those samples were obtained from precisely diffraction data processing. Their short-range ordered structures were determined by model design and quantitative calculations. In amorphous diboron trioxide hydrate, 75% of boron atoms construct planar six-membered boroxol ring and the interatomic distance and the interactions numbers of intra-ring ortho-B -O, meta-O-O, meta-B B and para-B-O were listed out, where boron-oxygen branched-chain intersects with the plane at a terminal-oxygen with a intersect angle of 125 degrees +/- 15 degrees. The basic structure unit of non-crystalline sodium pentaborate hydrate is formed by two planar six-membered boroxol rings deformed, composed of two boron-oxygen triangles (B(Delta)) and a boron-oxygen tetrahedron (B(square)), through the shared B(square). The highly ordered intra-anion interactions are the upmost interactions. Six coordinated Na(+) connects with the terminal-oxygen of pentaborate to form a contact ion pair with a characteristic distance (B-Na) of 0.330 nm.
收录类别: SCI
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.isl.ac.cn/handle/363002/1888
Appears in Collections:青海盐湖研究所知识仓储(2014年之前)_期刊论文

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Zhou Yongquan,Fang Yan,Cao Lingdi,et al. Amorphous Structure of Diboron Trioxide and Sodium Pentaborate Hydrate[J]. ACTA CHIMICA SINICA,2011,69(1):46-52.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Zhou Yongquan]'s Articles
 [Fang Yan]'s Articles
 [Cao Lingdi]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Zhou Yongquan]‘s Articles
 [Fang Yan]‘s Articles
 [Cao Lingdi]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2016  中国科学院青海盐湖研究所 - Feedback
Powered by CSpace