In situ FTIR-ATR observation of structural dynamics of H2PO4- in precrystallisation solution
文献类型：期刊论文
| 作者 | Sun,C. ; U,D.Xue,D. |
| 刊名 | materials research innovations
 |
| 出版日期 | 2014 |
| 卷号 | 18期号:5页码:370-375 |
| 关键词 | CHEMICAL-BOND AB-INITIO CRYSTAL GROWTH RAMAN KDP CRYSTALLIZATION MORPHOLOGY SPECTROSCOPY HYDRATION |
| 通讯作者 | xue,d |
| 英文摘要 | structural dynamics of h2po4- in aqueous solution with different supersaturations and ph values was investigated by fourier transformation infrared attenuated total reflectance (ftir-air) spectroscopy. with increase in the concentration of potassium dihydrogen phosphate (kdp), the variation of h2po4- configurations can be reflected by increased intensity of v(1)(po4) and the broadened width of v(3)(po4) absorption band in ftir-air spectra. with the transition of kdp solution from unsaturated to saturated and supersaturated states, both the red shift of delta(p-o center dot center dot center dot h-o-p) from 1229 to 1259 cm(-1) and the decreased density of stretching vibration of h2o at 1637 cm(-1) illustrate the development of h2po4- ions from monomers to dimmers and (h2po4-)(n) (n>2) in aqueous solutions. for saturated kh2po4 solution, h3po4 and h2po4- coexist with decreasing ph value down to 1 center dot 5, whereas hpo42- and h2po4- coexist in the solution with increasing ph value up to 6 center dot 0. such an in situ recording strategy is of particular value in studies of structural dynamics in different solution conditions, which can strengthen the understanding of crystallisation mechanisms of kdp family crystals. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-10-27 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/57532]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sun,C.,U,D.Xue,D.. In situ FTIR-ATR observation of structural dynamics of H2PO4- in precrystallisation solution[J]. materials research innovations,2014,18(5):370-375. |
| APA | Sun,C.,&U,D.Xue,D..(2014).In situ FTIR-ATR observation of structural dynamics of H2PO4- in precrystallisation solution.materials research innovations,18(5),370-375. |
| MLA | Sun,C.,et al."In situ FTIR-ATR observation of structural dynamics of H2PO4- in precrystallisation solution".materials research innovations 18.5(2014):370-375. |
入库方式： OAI收割
来源：长春应用化学研究所
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