Picosecond dynamics and microheterogenity of water plus dioxane mixtures

Schrodle S; Fischer B; Helm H; Buchner R

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Picosecond dynamics and microheterogenity of water plus dioxane mixtures

机译：水与二恶烷混合物的皮秒动力学和微异质性

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Dielectric spectra from 200 MHz up to 3 THz were determined to study the fast dynamics of dilute water + 1,4-dioxane. epsilon(nu) could be fitted by a collision induced oscillator at high frequencies plus two Debye relaxations in the microwave region. Isotope substitution was used to assign water and dioxane modes. The presence of the cooperative hydrogen-bond network relaxation down to a water mole fraction of 0.005 suggests a microheterogeneous structure of the mixtures even at low water content. The collision mode of dioxane at similar to 2 THz grows upon water addition, revealing the presence of H2O molecules in dioxane-rich domains.

机译：确定了从200 MHz到3 THz的介电谱，以研究稀水+ 1,4-二恶烷的快速动力学。 epsilon（nu）可以由高频率的碰撞感应振荡器加上微波区域中的两个德拜弛豫来拟合。同位素取代用于分配水和二恶烷模式。协同氢键网络弛豫至水摩尔分数降至0.005的存在表明，即使在低水含量下，混合物也具有微非均质结构。加入水后，二恶烷在接近2 THz时的碰撞模式会增加，这表明在富含二恶烷的域中存在H2O分子。

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《The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory》 |2007年第11期|共4页
作者
Schrodle S; Fischer B; Helm H; Buchner R;
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LOCAL ENERGY FLUCTUATIONS; TIME-DOMAIN SPECTROSCOPY; HYDROGEN-BONDS; COOPERATIVE DYNAMICS; VIBRATIONAL-SPECTRA; P-DIOXANE; RELAXATION; CYCLOHEXANE; LIQUIDS; RAMAN;

机译：局部能量波动;时域光谱;氢键;协同动力学;振动谱;对二恶烷;弛豫;环己烷;液体;拉曼;

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1. Picosecond dynamics and microheterogenity of water plus dioxane mixtures [J] . Schrodle S, Fischer B, Helm H, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2007,第11期

机译：水与二恶烷混合物的皮秒动力学和微异质性
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机译：表面二次谐波产生的空气 - 水界面化学反应的皮秒动力学

Picosecond dynamics and microheterogenity of water plus dioxane mixtures

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