| 磷酸根与磷酸基水化作用之比较—红外光谱研究 |
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| 引用本文： | 李泉 刘大春. 磷酸根与磷酸基水化作用之比较—红外光谱研究[J]. 光谱学与光谱分析, 1998, 18(2): 182-186 |
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| 作者姓名： | 李泉 刘大春 |
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| 作者单位： | 北京大学化学系稀土材料化学及应用国家重点实验 |
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| 摘 要： | 本文运用傅立叶变换红外光谱，对水／ＮａＤＥＨＰ／正庚烷反胶束体系中的磷酸根及磷酸三丁酯－水体系中磷酸基的水化作用进行了研究。
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| 关 键 词： | 反胶束体系 磷酸基 磷酸根 NaDEHP TBP 水化作用 |
COMPARATIVE STUDY ON THE HYDRATION OF PHOSPHATE GROUP IN H 2O/NaDEHP/n HEPTANE AND H 2O TBP SYSTEMS BY FT IR |
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| Q Li,D Liu,S Weng,N Shi,J Wu. COMPARATIVE STUDY ON THE HYDRATION OF PHOSPHATE GROUP IN H 2O/NaDEHP/n HEPTANE AND H 2O TBP SYSTEMS BY FT IR[J]. Spectroscopy and Spectral Analysis, 1998, 18(2): 182-186 |
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| Authors: | Q Li D Liu S Weng N Shi J Wu |
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| Affiliation: | State Key Laboratory of Rare Earth Materials Chemistry and Applications, Department of Chemistry, Peking University, 100871 Beijing. |
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| Abstract: | The hydrations of phosphate group in both tributyl phosphate (TBP)-H2O system and water/NaDEHP/n-heptane reverse micellar system have been studied using Fourier transform infrared spectroscopy (FT-IR). Water content (W0 = [H2O]/[TBP]) in TBP solutions was measured quantitatively using FT-IR. In water/NaDEHP/n-heptane reverse micellar system, the stretching frequencies of phosphate group shifted from 1229 to 1200cm(-1) when water content increased from 1 to 25. For TBP-H2O system, P=O stretching band varied from 1281.33 to 1263cm(-1) with the increasing water content (from 0.33 to 1.55). P=O stretching bands in TBP-H2O system were also found to split into two peaks located around 1283 and 1260cm(-1) after the bands were resolved by curve-fitting. All these variations are attributed to the hydration of phosphate in the two systems. |
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| Keywords: | FT IR Reversed micelle Hydration Tributyl phosphate (TBP) Sodium bis(2 ethylhexyl) phosphate(NaDEHP) |
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