Redox reactions of manganese porphyrins in aqueous solutions. Steady-state and pulse radiolysis spectrophotometric studies

1984 ◽  
Vol 88 (8) ◽  
pp. 1575-1579 ◽  
Author(s):  
K. M. Morehouse ◽  
P. Neta
Keyword(s):  
Steady State ◽  
Aqueous Solutions ◽  
Redox Reactions ◽  
Pulse Radiolysis ◽  
Manganese Porphyrins

scholarly journals Redox Reactions of Sanazole (AK- 2123) in Aqueous Solutions: A Pulse Radiolysis Study

2000 ◽  
Vol 41 (4) ◽  
pp. 355-366 ◽  
Author(s):  
SUDHIR KAPOOR ◽  
ROBIN MATHEW ◽  
NAGARAJ G. HUILGOL ◽  
TSUTOMU V. KAGIYA ◽  
CHERUPALLY KRISHNAN K. NAIR
Keyword(s):  
Aqueous Solutions ◽  
Redox Reactions ◽  
Pulse Radiolysis

Pulse radiolysis studies on the redox reactions of aqueous solutions of .gamma.-cyclodextrine/C60 complexes

1994 ◽  
Vol 98 (38) ◽  
pp. 9565-9569 ◽  
Author(s):  
K. I. Priyadarsini ◽  
H. Mohan ◽  
J. P. Mittal ◽  
D. M. Guldi ◽  
K.-D. Asmus
Keyword(s):  
Aqueous Solutions ◽  
Redox Reactions ◽  
Pulse Radiolysis

Pulse radiolysis of nitric oxide in aqueous solution

1970 ◽  
Vol 48 (2) ◽  
pp. 393-394 ◽  
Author(s):  
W. A. Seddon ◽  
M. J. Young
Keyword(s):  
Nitric Oxide ◽  
Aqueous Solution ◽  
Steady State ◽  
Aqueous Solutions ◽  
Pulse Radiolysis ◽  
Hydrated Electron ◽  
Neutral Ph

Pulse radiolysis of aqueous solutions of nitric oxide at neutral pH shows that the reaction initiated by the hydrated electron, e−(aq), proceeds via NO− and a new transient thought to be (N2O2)−, and not HNO as indicated previously by steady state radiolysis.

Reactions of OH and e aq - Adducts of Cytosine and Its Nucleosides or Nucleotides with Cu(II) Ions in Dilute Aqueous Solutions: A Steady-State and Pulse Radiolysis Study

1996 ◽  
Vol 146 (5) ◽  
pp. 514 ◽  
Author(s):  
K. Chabita ◽  
A. Saha ◽  
P. C. Mandal ◽  
S. N. Bhattacharyya ◽  
M. C. Rath ◽  
...  
Keyword(s):  
Steady State ◽  
Aqueous Solutions ◽  
Pulse Radiolysis ◽  
Dilute Aqueous Solutions

scholarly journals Redox Reactions of Tocopherol Monoglucoside in Aqueous Solutions: A Pulse Radiolysis Study

2002 ◽  
Vol 43 (1) ◽  
pp. 99-99 ◽  
Author(s):  
SUDHIR KAPOOR ◽  
TULSI MUKHERJEE ◽  
TSUTOMU V. KAGIYA ◽  
CHERUPALLY KRISHNAN K. NAIR
Keyword(s):  
Aqueous Solutions ◽  
Redox Reactions ◽  
Pulse Radiolysis

The radiolysis of aqueous solutions of oxybromine compounds; the spectra and reactions of BrO and BrO 2

1968 ◽  
Vol 304 (1479) ◽  
pp. 427-439 ◽  
Keyword(s):  
Aqueous Solution ◽  
Steady State ◽  
Aqueous Solutions ◽  
Absorption Spectra ◽  
Rate Constants ◽  
Pulse Radiolysis ◽  
Kinetic Spectroscopy

Pulse radiolysis supplemented by steady state radiolysis of aqueous solutions containing some of the following solutes: N 2 O, Br - , BrO - , BrO - 2 , BrO - 3 , CO 2- 3 , and OH - has been used to identify the absorption spectra of BrO ( λ max = 350 nm) and BrO 2 ( λ max = 475 nm) and to evaluate the following rate constants (units, M -1 s -1 ): e - aq. + BrO - → Br - + O - (2.3 ± 0.5 x 10 10 ); e - aq. + BrO - 2 → BrO + O 2- (1.8 ± 0.2 x 10 10 ); e - aq. + BrO - 3 → BrO 2 + O 2- (4.1 ± 0.2 x 10 9 ); OH + BrO - → OH - + BrO (4.5 x 10 9 ); O - + BrO - → BrO + O 2- (4.6 x 10 9 ); OH + BrO - 2 → OH - + BrO 2 (1.9 x 10 9 ); Br - 2 + BrO - → BrO + 2Br - (8.0 ± 0.7 x 10 7 ); Br - 2 + BrO - 2 → BrO + Br - + BrO - (8.0 ± 0.8 x 10 7 ); BrO + BrO - 2 → BrO - + BrO 2 (3.4 ± 0.7 x 10 8 ); 2BrO 2 ⇌ Br 2 O 4 ( k = 1.4 x 10 9 and K = 19 M -1 ); Br 2 O 4 + OH - → H + + BrO - 2 + BrO - 3 (7 x 10 8 ); 2BrO + H 2 O → BrO - + BrO - 2 + 2H + (4.9 ± 1.0 x10 9 ); CO - 3 + BrO - → CO 2- 3 + BrO (4.3 ± 0.4 x 10 7 ); CO - 3 + BrO - 2 → CO 2- 3 + BrO 2 (1.1 ± 0.1 x 10 8 ). In contrast to their chlorine analogues, little is known of the chemistry of the bromine oxides in aqueous solution. In this paper we describe the methods of formation and identification of the radicals BrO and BrO 2 , and their reactions with various oxybromine species, as elucidated by the techniques of pulse radiolysis and kinetic spectroscopy applied to aqueous solutions containing oxybromine anions.

Sign in / Sign up

Export Citation Format

Share Document