水の動的構造をラマン散乱分光の観点から検討した.水のラマン散乱スペクトルは,H2O分子の基準 振動解析から得られる基準振動では説明ができない.水素結合の3次元的なネットワークで形成され る短い時間のクラスター的な構造を考える事によって,大筋が理解される事を示した.このクラスター 的な構造は,psのオーダーで生成消滅を繰り返しており,その揺らぎが,ラマンスペクトルの中心成 分に現れる.これらのスペクトル解析から,水と水溶液系の水素結合の状態を解析できる事を示した.We have investigated the dynamical structure of water from Raman spectroscopic viewpoint. Raman spectra of water are never explained by normal vibrations of a H2O molecule. It must be considered that liquid water is conformed by a 3 dimensional hydrogen-bond network. The hydrogen-bond network in liquid water is created and annihilated during ps order, which reflects the central component of Raman spectra. From the analysis of these Raman spectra we have shown that the hydrogen-bond state in liquid water and aque...
<p>Understanding the Raman spectroscopy at the atomistic level is important for the elucidation of d...
Raman spectroscopy in combination with multivariate curve resolution (Raman-MCR) is used to explore ...
Raman spectroscopy was utilized to investigate the effects of dissolved NaCl on water structure. For...
水・アルコール2成分混合系に対して,レイリーブリルアン散乱と低振動数ラマン散乱を測定した.レイリーブリルアン散乱からはLandau-Placzek比を求めた.低振動数ラマン散乱は,系の動的感受率x"(...
在290 K和0.01~600 MPa条件下, 就压力对液态水对称伸缩振动的影响进行了原位Raman散射光谱研究. 表明: (1)在0.1~200 MPa范围内, (ν1)max随着压力升高而减小; ...
在合成包裹体腔中,用显微激光拉曼探针原位分析了高温下纯水和含气体CO2的流体中水分子的氢键作用.研究结果表明,随着温度升高,流体中水分子的氢键作用不断减弱,但纯水在最高的测量温度400℃,含CO2的流...
利用金刚石压腔测定了26 ℃高压下水的O-H伸缩振动拉曼谱峰的变化,并对其进行分峰处理,初步确定了水的拉曼拟合峰ν3 244的峰位置与体系压力的关系,且论证了利用水的拉曼拟合峰ν3 244的变化标定金...
应用金刚石压腔结合拉曼光谱技术研究了重水在291K,0.1~800MPa条件下的拉曼谱图。结果表明:压力增大的过程中,重水的拉曼伸缩振动光谱向低频方向移动,并且频移和压力基本呈线性相关。频移没有突变,...
我们在实验室合成了大长度的甲烷水合物,通过其拉曼光谱确定不同高压下的结构特征,并测定了其弹性波速度.多晶的甲烷水合物合成采用细粒冰作为开始材料,把这些冰粒包裹后放进一个金属压力容器中,压力容器浸没在一...
We report the first <i>ab initio</i> simulations of the Raman spectra of liquid water, obtained by c...
Water ice exhibited anomalies when under cooling, compressing and clustering excitation. The key to ...
Water ice exhibited anomalies when under cooling, compressing and clustering excitation. The key to ...
In this Letter, Raman spectroscopy is employed to study supercooled water down to a temperature of 2...
The structure of water in aqueous solutions of polyoxyethylene monionic amphiphiles C10E5, where E5 ...
Une caractéristique de la spectroscopie Raman de l'eau en relation avec le mouvement collectif de pe...
<p>Understanding the Raman spectroscopy at the atomistic level is important for the elucidation of d...
Raman spectroscopy in combination with multivariate curve resolution (Raman-MCR) is used to explore ...
Raman spectroscopy was utilized to investigate the effects of dissolved NaCl on water structure. For...
水・アルコール2成分混合系に対して,レイリーブリルアン散乱と低振動数ラマン散乱を測定した.レイリーブリルアン散乱からはLandau-Placzek比を求めた.低振動数ラマン散乱は,系の動的感受率x"(...
在290 K和0.01~600 MPa条件下, 就压力对液态水对称伸缩振动的影响进行了原位Raman散射光谱研究. 表明: (1)在0.1~200 MPa范围内, (ν1)max随着压力升高而减小; ...
在合成包裹体腔中,用显微激光拉曼探针原位分析了高温下纯水和含气体CO2的流体中水分子的氢键作用.研究结果表明,随着温度升高,流体中水分子的氢键作用不断减弱,但纯水在最高的测量温度400℃,含CO2的流...
利用金刚石压腔测定了26 ℃高压下水的O-H伸缩振动拉曼谱峰的变化,并对其进行分峰处理,初步确定了水的拉曼拟合峰ν3 244的峰位置与体系压力的关系,且论证了利用水的拉曼拟合峰ν3 244的变化标定金...
应用金刚石压腔结合拉曼光谱技术研究了重水在291K,0.1~800MPa条件下的拉曼谱图。结果表明:压力增大的过程中,重水的拉曼伸缩振动光谱向低频方向移动,并且频移和压力基本呈线性相关。频移没有突变,...
我们在实验室合成了大长度的甲烷水合物,通过其拉曼光谱确定不同高压下的结构特征,并测定了其弹性波速度.多晶的甲烷水合物合成采用细粒冰作为开始材料,把这些冰粒包裹后放进一个金属压力容器中,压力容器浸没在一...
We report the first <i>ab initio</i> simulations of the Raman spectra of liquid water, obtained by c...
Water ice exhibited anomalies when under cooling, compressing and clustering excitation. The key to ...
Water ice exhibited anomalies when under cooling, compressing and clustering excitation. The key to ...
In this Letter, Raman spectroscopy is employed to study supercooled water down to a temperature of 2...
The structure of water in aqueous solutions of polyoxyethylene monionic amphiphiles C10E5, where E5 ...
Une caractéristique de la spectroscopie Raman de l'eau en relation avec le mouvement collectif de pe...
<p>Understanding the Raman spectroscopy at the atomistic level is important for the elucidation of d...
Raman spectroscopy in combination with multivariate curve resolution (Raman-MCR) is used to explore ...
Raman spectroscopy was utilized to investigate the effects of dissolved NaCl on water structure. For...