The Study of Dynamical Structure of Water Molecules in Aqueous Solutions of Acetone and DMSO by Low Frequency Raman Scattering

2003 ◽  
Vol 72 (10) ◽  
pp. 2665-2670 ◽  
Author(s):  
Yuichi Takasu ◽  
Yuji Miyashita ◽  
Yukiko Kasai ◽  
Izumi Nishio
Keyword(s):  
Raman Scattering ◽  
Aqueous Solutions ◽  
Low Frequency ◽  
Water Molecules ◽  
Dynamical Structure ◽  
Structure Of Water

Unified Effect of Hydrophobic Hydration on the Dynamics and the Structure of Water Molecules in Lower Alcohol Aqueous Solutions

2011 ◽  
Vol 80 (4) ◽  
pp. 044604 ◽  
Author(s):  
Masaru Nakada ◽  
Kenji Maruyama ◽  
Osamu Yamamuro ◽  
Tatsuya Kikuchi ◽  
Masakatsu Misawa
Keyword(s):  
Aqueous Solutions ◽  
Hydrophobic Hydration ◽  
Water Molecules ◽  
Structure Of Water ◽  
Lower Alcohol

Infrared spectrum of HDO in aqueous solutions of perchlorates and tetrafluoroborates

1970 ◽  
Vol 48 (19) ◽  
pp. 3019-3025 ◽  
Author(s):  
George Brink ◽  
Michael Falk
Keyword(s):  
Aqueous Solutions ◽  
Pure Water ◽  
Ion Pairs ◽  
Low Frequency ◽  
Frequency Component ◽  
High Frequency Component ◽  
Water Molecules ◽  
Oh Groups ◽  
Cation Effect ◽  
Crystalline Hydrates

The OH and OD stretching bands of HDO in aqueous solutions containing the ions ClO4− and BF4− are split into two components. The high-frequency component, A, does not shift with temperature. It is interpreted as due to OH groups involved in weak [Formula: see text] or [Formula: see text] hydrogen bonds. This interpretation is in line with the corresponding OH frequencies of other systems containing ClO4− ions, such as methanolic solutions and crystalline hydrates. Solvent-separated ion pairs may account for the observed cation effect on band A. The low-frequency component, B, varies with temperature almost exactly like the corresponding band of pure water. It is interpreted to be due to those OH groups which are not associated with the anion. Components A and B are not resolved in solutions of most electrolytes because the distribution of strengths of interactions of OH groups with most anions overlaps that of [Formula: see text] interactions between water molecules.

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