水合铵硼氧酸盐及其饱和溶液的FTIR和Raman光谱研究  

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

作　　者：王奖[1] 朱黎霞[1] 夏树屏[1] 王波[1] 高世扬[1] 

机构地区：[1]中国科学院青海盐湖研究所西安二部,西安710043

出　　处：《高等学校化学学报》2004年第7期1213-1217,MJ02,共6页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 2 710 5 1)资助

摘　　要：研究了 NH4 B5O8· 4H2 O和 ( NH4 ) 2 B8O1 3· 6H2 O及其饱和溶液于 2 0℃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 ) 2 B8O1 3· 6H2 O中所含基本结构单元为 [B7O1 1 ( OH)·B( OH) 3]2 - .首次将 Raman光谱中 5 1 6cm- 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]-FTIR and Raman Spectra of NH 4B 5O 8·4H 2O and (NH 4) 2B 8O 13·6H 2O 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 (NH 4) 2B 8O 13·6H 2O was predicted, as [B 7O 11(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 3O 3(OH) 4] - and [B 5O 6(OH) 4] -} and their interaction in borate saturated aqueous solution were proposed.

关 键 词：水合铵硼氧酸盐 多聚硼氧配阴离子 FTIR光谱 RAMAN光谱 振动频率 饱和溶液 作用机理 

分 类 号：O613.81[理学—无机化学] O645[理学—化学]