Structure of aqueous potassium metaborate solution

被引：22
|
作者：
Zhu, F. Y. [1 ]
Fang, C. H. [1 ]
Fang, Y. [1 ]
Zhou, Y. Q. [1 ]
Ge, H. W. [1 ]
Liu, H. Y. [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Salt Lakes, Key Lab Salt Resources & Chem, Xining 8100084, Qinghai, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2014年 / 1070卷
基金：
美国国家科学基金会;
关键词：
Potassium metaborate; Solution structure; X-ray scattering; Raman spectra; HYDRATED OXYSALT MINERALS; BOND-VALENCE APPROACH; SODIUM PENTABORATE; EQUILIBRIUM STEPS; CRYSTAL-STRUCTURE; WATER; PARAGENESIS; POLYANIONS; CHEMISTRY; DYNAMICS;
D O I：
10.1016/j.molstruc.2014.04.002
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The structure of aqueous potassium metaborate solutions has been confirmed by X-ray scattering, Raman spectra and species distribution calculation. The optimized structure of B(OH)(4)(-) was obtained by density functional theory calculation. The hydration distance and hydration number of K+ in aqueous potassium metaborate solution were given by X-ray scattering. The B-O(H2O) distance in hydrated anion B(OH)(4)(-) were determined to be 0.37 nm with the hydration number of 2.3 per hydroxyl(-OH). The K-B distance of the contact ions KB(OH)(4)(0) was measured to be 0.34 nm. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：80 / 85
页数：6
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