高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (7): 1213.

• 研究论文 • 上一篇    下一篇

水合铵硼氧酸盐及其饱和溶液的FTIR和Raman光谱研究

王奖, 朱黎霞, 夏树屏, 王波, 高世扬   

  1. 中国科学院青海盐湖研究所西安二部, 西安 710043
  • 收稿日期:2003-06-11 出版日期:2004-07-24 发布日期:2004-07-24
  • 通讯作者: 朱黎霞(1966年出生),女,博士,副研究员,从事硼酸盐化学研究.E-mail:gsyabc@pub.xaonline.com E-mail:gsyabc@pub.xaonline.com
  • 基金资助:

    国家自然科学基金(批准号:20271051)资助

FTIR and Raman Spectroscopic Study of Hydrated Ammonium Borates and Their Saturated Aqueous Solutions

WANG Jiang, ZHU Li-Xia, XIA Shu-Ping, WANG Bo, GAO Shi-Yang   

  1. Xi′an Branch, Institute of Salt Lakes, Chinese Academy of Sciences, Xi′an 710043, China
  • Received:2003-06-11 Online:2004-07-24 Published:2004-07-24

摘要: 研究了NH4B5O8·4H2O和(NH4)2B8O13·6H2O及其饱和溶液于20℃的FTIR和Raman光谱,对振动频率进行了归属.根据振动光谱特征,预测(NH4)2B8O13·6H2O中所含基本结构单元为[B7O 11(OH)·B(OH)3]2-.首次将Raman光谱中516cm-1处的强散射峰归属为这一多聚硼氧配阴离子的对称脉冲振动峰,并对以上2种铵硼氧酸盐饱和溶液中硼氧配阴离子的存在形式{B(OH)3,[B3O3(OH)4]-和[B5O6(OH)4]-}和相互作用机理进行了探讨.

关键词: 水合铵硼氧酸盐, 多聚硼氧配阴离子, FTIR光谱, Raman光谱

Abstract: FTIR and Raman Spectra of NH4B5O8·4H2O and (NH4)2B8O13·6H2O and their saturated aqueous solutions were recorded respectively at 20 ℃. Fundamental vibrational modes were identified and the assignment of vibrational bands were made. Based on the characterization of vibration spectra, the FBB of (NH4)2B8O13·6H2Owas predicted, as [B7O11(OH)·B(OH)3] 2-, and the strong and sharp band around 516 cm-1 in Raman spectrum was tentatively assigned to its symmetric pulse vibration, firstly. According to the FTIR differential spectra and Raman spectra, both the main polyborate anions {B(OH)3, [B 3O3(OH)4] - and [B5O6(OH)4]-} and their interaction in borate saturated aqueous solution were proposed.

Key words: Hydrated ammonium borate, Polyborate anion, FTIR spectrum, Raman spectrum

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