scholarly journals KINETIC STUDY ON ANIONIC σ-COMPLEX FORMATION BETWEEN 2,4,6-TRINITROANISOLE AND METHOXIDE ION BY HIGH PRESSURE STOPPED-FLOW METHOD

1979 ◽  
Vol 8 (6) ◽  
pp. 671-674 ◽  
Author(s):  
Noboru Takisawa ◽  
Muneo Sasaki ◽  
Fujitsugu Amita ◽  
Jiro Osugi
Keyword(s):  
High Pressure ◽  
Complex Formation ◽  
Kinetic Study ◽  
Stopped Flow ◽  
Flow Method ◽  
Methoxide Ion

Mechanism of bromination of a quaternary pyrimidinium cation. Change of rate determining step with acidity

1978 ◽  
Vol 56 (23) ◽  
pp. 2970-2976 ◽  
Author(s):  
Oswald S. Tee ◽  
David C. Thackray ◽  
Charles G. Berks
Keyword(s):  
Kinetic Study ◽  
Rate Constants ◽  
Aqueous Media ◽  
Stopped Flow ◽  
Flow Method ◽  
High Acidity ◽  
Rate Determining Step ◽  
Kinetics Of ◽  
Good Agreement

The kinetics of bromination of the 1,2-dihydro-1,3-dimethyl-2-oxopyrimidinium cation (Q+) in aqueous media (pH 0–5) have been studied using the stopped-flow method. At the higher acidities (pH < 2) the results are consistent with rate determining attack by bromine upon the pseudobase (QOH), whereas at low acidities (pH > 4) it appears that pseudobase formation is rate determining. The change occurs because at high acidity the reversal of the pseudobase QOH to the cation is fast relative to bromine attack, whereas at low acidity the converse is true. Results obtained at intermediate acidities (pH 2–4) are consistent with this interpretation.A separate kinetic study of pseudobase formation (and decomposition) yielded rate constants in good agreement with those derived from the bromination study.

Combined pressure and cosolvent effects on enzyme activity – a high-pressure stopped-flow kinetic study on α-chymotrypsin

2015 ◽  
Vol 17 (35) ◽  
pp. 23273-23278 ◽  
Author(s):  
Trung Quan Luong ◽  
Roland Winter
Keyword(s):  
High Pressure ◽  
Enzyme Activity ◽  
Kinetic Study ◽  
Stopped Flow ◽  
Hydrolysis Of ◽  
Cosolvent Effects

Pressure enhances the hydrolysis of peptides catalysed by α-CT, which is efficiently and differently modulated by chaotropic and kosmotropic cosolvents.

scholarly journals Stopped-Flow Kinetic Study of the Complex Formation between Pyridoxal 5′-Phosphate and Bovine Serum Albumin

1986 ◽  
Vol 59 (11) ◽  
pp. 3399-3403 ◽  
Author(s):  
Kiyofumi Murakami ◽  
Yukio Kubota ◽  
Yasuo Fujisaki ◽  
Takayuki Sano
Keyword(s):  
Bovine Serum Albumin ◽  
Complex Formation ◽  
Serum Albumin ◽  
Kinetic Study ◽  
Bovine Serum ◽  
Stopped Flow

High-pressure stopped-flow study of complex formation on nickel(II) ion in dimethylformamide. Possible existence of a 5-coordinate intermediate

1984 ◽  
Vol 23 (25) ◽  
pp. 4341-4345 ◽  
Author(s):  
Peter J. Nichols ◽  
Yolande Fresard ◽  
Yves Ducommun ◽  
Andre E. Merbach
Keyword(s):  
High Pressure ◽  
Complex Formation ◽  
Stopped Flow ◽  
Flow Study
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