Raman Spectroscopic Study on Acetic Acid Clusters in Aqueous Solutions:  Dominance of Acid−Acid Association Producing Microphases

1999 ◽  
Vol 103 (50) ◽  
pp. 10851-10858 ◽  
Author(s):  
Nobuyuki Nishi ◽  
Takakazu Nakabayashi ◽  
Kentaroh Kosugi
Keyword(s):  
Acetic Acid ◽  
Aqueous Solutions ◽  
Spectroscopic Study ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study ◽  
Acid Acid

Raman Spectroscopic Study on the Conformation of 1,2-Dimethoxyethane in the Liquid Phase and in Aqueous Solutions

2000 ◽  
Vol 104 (40) ◽  
pp. 9226-9232 ◽  
Author(s):  
Nikolay Goutev ◽  
Keiichi Ohno ◽  
Hiroatsu Matsuura
Keyword(s):  
Liquid Phase ◽  
Aqueous Solutions ◽  
Spectroscopic Study ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study

Raman Spectroscopic Study of the Ion Association of Lithium Sulfate Aqueous Solutions

1995 ◽  
Vol 50 (2-3) ◽  
pp. 292-300 ◽  
Author(s):  
Fernando Rull
Keyword(s):  
Aqueous Solutions ◽  
Spectroscopic Study ◽  
Association Constant ◽  
Profile Analysis ◽  
Dynamic Properties ◽  
Ion Association ◽  
Sulfate Ions ◽  
Raman Spectroscopic ◽  
Raman Spectroscopic Study ◽  
Band Profile

Abstract A Raman spectroscopic study of Li2SO4 aqueous solutions as function of concentration and temperature was performed. The dynamic properties of the sulfate ions were studied by a band profile analysis of their internal modes using Fourier transform methods. This analysis reveals the perturbation of the SO4-2 vibrations due to ionic interactions. From the v1 (SO4-2) band profile the spectroscopic ionic association constant was calculated in the range from 5 to 80 °C. The large difference found between the values thus obtained for the association constant and the values obtained from macroscopic measurements is interpreted, assuming that Raman spectra reflect only the short-range forces acting on the ions. Using the Bjerrum equation to calculate the contribution for the long-range forces, good agreement is found between the spectroscopic and macroscopic results.

Raman spectroscopic study of the structure of water in aqueous solutions of amphoteric polymers

2006 ◽  
Vol 8 (10) ◽  
pp. 1178 ◽  
Author(s):  
Hiromi Kitano ◽  
Kohei Takaha ◽  
Makoto Gemmei-Ide
Keyword(s):  
Aqueous Solutions ◽  
Spectroscopic Study ◽  
Raman Spectroscopic ◽  
Structure Of Water ◽  
Raman Spectroscopic Study ◽  
Amphoteric Polymers
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