Water Aggregate in a Reversed Micelle and Hydrated Cluster in a Molecular Beam
反胶束中的水聚集体和分子束中的水合簇
基本信息
- 批准号:03640402
- 负责人:
- 金额:$ 1.34万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1991
- 资助国家:日本
- 起止时间:1991 至 1992
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
A small water aggregate located near a biopolymer is known to work as an important reaction medium. We have investigated the properties of such a water aggregate based on the following two model: Water pool in a reversed micellar solution from H_2O/isooctane/ AOT(Aerosol OT) and hydrated clusters formed in a supersonic molecular beam. In this work we mainly investigated solubilization of a series of pyrenyl compounds with different polarity, sodium pyrenesulfonate (PSA^-Na^+) and sodium 8-acetoxypyrene-1,3,6-trisulfonate (APTSNa), in the reversed micelle. The location and distribution of the probe molecules in the reversed micelle was determined by analyzing time profiles as well as absorption and fluorescence spectra of laser-induced transient species. The transient absorption spectra and their time profiles strongly depend on the size of water pool. Those dependences can be explained in terms of location and distribution of PSA^- or APTS in the reversed micelle. In conclusion, (1) PSA^- molecules are located both in the water pool and in the hydrophbic part of the surfactant. Its distribution in the water pool decreases with decrease of the size of water pool and most of PSA^- are located in the hydrophobic part in the smallest reversed micelle. On the other hand, more polar molecule, APTS, is predominantly distributed in the water pool. (2) A sufficiently large size of water pool to solubilize these pyrenyl compounds in the water pool. (3) Solubilities of these molecules in a sufficiently large water pool are less than those in bulk water. Only a small number of water pools contain more than two PSA^- or APTS moleculs. These properties for solubilization of pyrenyl compounds in the water pool are in contrast to a hydrated cluster formed in a supersonic beam. It suggests that the layer surrounding water pool or bound water strongly affects solubilization of a solute molecule in the water pool.
位于生物聚合物附近的小水聚集体被认为是一种重要的反应介质。我们基于以下两个模型研究了这种水聚集体的性质:h2o /异辛烷/ AOT(气溶胶OT)反胶束溶液中的水池和超音速分子束中形成的水合团簇。本文主要研究了一系列不同极性的芘基化合物,芘磺酸钠(PSA^-Na^+)和8-乙酰氧基芘-1,3,6-三磺酸钠(APTSNa)在反相胶束中的增溶作用。通过分析激光诱导瞬态物质的吸收光谱和荧光光谱,确定了探针分子在反胶束中的位置和分布。瞬态吸收光谱及其时间分布与水池的大小密切相关。这些依赖关系可以用PSA^-或APTS在反向胶束中的位置和分布来解释。综上所述,(1)PSA^-分子既位于水池中,也位于表面活性剂的疏水部分。其在水塘中的分布随着水塘大小的减小而减小,大部分PSA^-位于最小反胶团的疏水部分。另一方面,极性更强的分子APTS主要分布在水池中。(2)有足够大的水池使这些芘类化合物在水池中溶解。(3)这些分子在足够大的水池中的溶解度小于在散装水中的溶解度。只有少数水池含有两个以上的PSA^-或APTS分子。芘基化合物在水池中增溶的这些性质与在超音速光束中形成的水合团簇相反。这表明,水池或结合水周围的层对溶质分子在水池中的溶解作用有强烈的影响。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Y. MORI and T. KITAGAWA: "Transient absorption spectra of laser-excited pyrenesulfonate dissolved in the AOT reversed micellar system" Reports of Toyota Physical and Chemical Research Institute,. 45. 65-70 (1992)
Y. MORI 和 T. KITAGAWA:“溶解在 AOT 反胶束体系中的激光激发芘磺酸盐的瞬态吸收光谱”,丰田理化研究所的报告。
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- 影响因子:0
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森 佳洋: "AOT逆ミセル中に可溶化したピレンスルホン酸のレーザー励起過渡吸収スペクトル" 豊田研究報告. 45. 65-70 (1992)
Yoshihiro Mori:“溶解在 AOT 反胶束中的芘磺酸的激光激发瞬态吸收光谱”丰田研究报告 45. 65-70 (1992)。
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- 影响因子:0
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森 佳洋: "AOT逆ミセル中に可溶化したピレンスルホン酸のレ-ザ-励起過渡吸収" 豊田研究報告. 45. (1992)
Yoshihiro Mori:“激光诱导溶解在 AOT 反胶束中的芘磺酸的瞬时吸收”丰田研究报告 45。(1992 年)
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- 影响因子:0
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Yoshihiro MORI: "Pyrenesulfonate solubilized in an Aerosol OT (AOT) reversed micelles. Location and distribution" Chemistry Letters. 49-52 (1993)
Yoshihiro MORI:“芘磺酸盐溶解在气溶胶 OT (AOT) 反转胶束中。位置和分布”《化学快报》。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Yoshihiro MORI: "Pyrenesulfonate solubilized in an Aerosol OT(AOT) reversed micelles. Location and distribution" Chemistry Letters. 49-52 (1993)
Yoshihiro MORI:“芘磺酸盐溶解在气溶胶 OT(AOT) 反转胶束中。位置和分布”化学快报。
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MORI Yoshihiro其他文献
MORI Yoshihiro的其他文献
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{{ truncateString('MORI Yoshihiro', 18)}}的其他基金
Research of creating a e-Learning community
创建电子学习社区的研究
- 批准号:
19500791 - 财政年份:2007
- 资助金额:
$ 1.34万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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- 批准号:
63840012 - 财政年份:1988
- 资助金额:
$ 1.34万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research