scholarly journals The Study of the Raman Band Shape of Sulfuric Acid and Proton Transfer

1976 ◽  
Vol 49 (8) ◽  
pp. 2051-2054 ◽  
Author(s):  
Shun-ichi Ikawa ◽  
Masao Kimura
Keyword(s):  
Sulfuric Acid ◽  
Proton Transfer ◽  
Raman Band ◽  
Band Shape

Raman band-shape analysis of urea—lysozyme interaction in aqueous solution

1996 ◽  
Vol 378 (2) ◽  
pp. 111-119 ◽  
Author(s):  
Elizabeth P.G. Arêas ◽  
Mauro C.C. Ribeiro ◽  
Paulo S. Santos
Keyword(s):  
Aqueous Solution ◽  
Shape Analysis ◽  
Raman Band ◽  
Band Shape

Toward Magic Photoacids: Proton Transfer in Concentrated Sulfuric Acid

2018 ◽  
Vol 122 (46) ◽  
pp. 9025-9030 ◽  
Author(s):  
Daniel Maus ◽  
Alexander Grandjean ◽  
Gregor Jung
Keyword(s):  
Sulfuric Acid ◽  
Proton Transfer ◽  
Concentrated Sulfuric Acid

Study of the Wallach rearrangement and related processes in the 100% sulfuric acid region

1970 ◽  
Vol 48 (2) ◽  
pp. 377-382 ◽  
Author(s):  
E. Buncel ◽  
W. M. J. Strachan
Keyword(s):  
Sulfuric Acid ◽  
Proton Transfer ◽  
Kinetic Method ◽  
Rate Data ◽  
Upper Limit ◽  
Transfer Step ◽  
Rearrangement Process ◽  
Equilibrium Process ◽  
Acid Catalyzed ◽  
Acid Region

Study of the acid-catalyzed Wallach rearrangement of azoxybenzene is extended into the 100% H2SO4 region. The rate of formation of 4-hydroxyazobenzene can be followed spectrally in a straight-forward manner until close to 99% H2SO4, but in higher acidities sulfonation of this product becomes kinetically important. The advent of second equilibrium protonations of 4-hydroxyazobenzene and of 4-hydroxyazobenzene-4′-slfonic acid further complicate the azoxybenzene rearrangement as followed spectrally. Above 100% H2SO4 a second sulfonation is also observed. A method is given for dissecting the rate data for the primary rearrangement process from the first of the sulfonation reactions.The rate of the azoxybenzene rearrangement is observed to increase continuously up to 99.99% H2SO4 (the upper limit of the present kinetic method). This suggests that the second proton transfer step to azoxybenzene is rate-determining and not an equilibrium process. These results permit a clarification of a previously proposed mechanism (1).

Simulation of the probe frequency dependence of the resonant inverse Raman band shape: A vibronic approach

1986 ◽  
Vol 128 (5-6) ◽  
pp. 555-558 ◽  
Author(s):  
Masao Takayanagi ◽  
Hiro-o Hamaguchi ◽  
Mitsuo Tasumi
Keyword(s):  
Frequency Dependence ◽  
Raman Band ◽  
Band Shape ◽  
Probe Frequency

Raman band-shape analysis of urea-lysozyme interaction in aqueous solution

1996 ◽  
Vol 378 (2) ◽  
pp. 111-119 ◽  
Author(s):  
Elizabeth P.G. Arêas ◽  
Mauro C.C. Ribeiro ◽  
Paulo S. Santos
Keyword(s):  
Aqueous Solution ◽  
Shape Analysis ◽  
Raman Band ◽  
Band Shape

Raman band shape analysis of a low temperature molten salt

2003 ◽  
Vol 119 (16) ◽  
pp. 8567-8576 ◽  
Author(s):  
Ary O. Cavalcante ◽  
Mauro C. C. Ribeiro
Keyword(s):  
Low Temperature ◽  
Molten Salt ◽  
Shape Analysis ◽  
Raman Band ◽  
Band Shape

Incoherent quasielastic neutron scattering and Raman band shape study of the NH3 and BF-4 reorientations in [Ni(NH3)6](BF4)2

Physica B+C ◽  
1986 ◽  
Vol 138 (3) ◽  
pp. 280-286 ◽  
Author(s):  
J.A. Janik ◽  
J.M. Janik ◽  
A. Migdał-Mikuli ◽  
E. Mikuli ◽  
K. Otnes
Keyword(s):  
Neutron Scattering ◽  
Raman Band ◽  
Band Shape ◽  
Quasielastic Neutron ◽  
Quasielastic Neutron Scattering
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