scholarly journals Kinetics and Mechanism of Oxidation Reactions of Porphyrin−Iron(IV)−Oxo Intermediates

2007 ◽  
Vol 46 (16) ◽  
pp. 6767-6774 ◽  
Author(s):  
Zhengzheng Pan ◽  
Martin Newcomb
Keyword(s):  
Kinetics And Mechanism ◽  
Oxidation Reactions ◽  
Mechanism Of Oxidation

Mechanism of Oxidation Reactions of Bromine

1958 ◽  
Vol 14 (5_6) ◽  
pp. 357-360
Author(s):  
K. C. Grover ◽  
R. C. Mehrotra
Keyword(s):  
Oxidation Reactions ◽  
Mechanism Of Oxidation

Mechanism of Oxidation Reactions of Bromine

1958 ◽  
Vol 14 (5_6) ◽  
pp. 345-356 ◽  
Author(s):  
K. C. Grover ◽  
R. C. Mehrotra
Keyword(s):  
Oxidation Reactions ◽  
Mechanism Of Oxidation

Kinetics and Mechanism of Oxidation of Labetalol by Hexacyanoferrate(III) in Alkaline Medium

2012 ◽  
Vol 3 (2) ◽  
pp. 131-133
Author(s):  
ANNAPURNA NOWDURI ◽  
◽  
Apparao Babu Duggada ◽  
Vijaya Raju Kurimella
Keyword(s):  
Alkaline Medium ◽  
Kinetics And Mechanism ◽  
Mechanism Of Oxidation

Kinetics and Mechanism of Oxidation of Paracetamol by Thallic Perchlorate in Acid Medium

2015 ◽  
Vol 4 (3) ◽  
pp. 302-309 ◽  
Author(s):  
Deepmala Pareek ◽  
Riya Sailani ◽  
Vinita Gupta ◽  
Chandra Khandelwal ◽  
Prem Sharma
Keyword(s):  
Acid Medium ◽  
Kinetics And Mechanism ◽  
Mechanism Of Oxidation

scholarly journals Kinetics and Mechanism of Oxidation of Aliphatic Aldehydes by Benzyltrimethylammonium tribromide

1999 ◽  
Vol 23 (3) ◽  
pp. 176-177
Author(s):  
Garima Goswami ◽  
Seema Kothari ◽  
Kalyan K. Banerji
Keyword(s):  
Carboxylic Acid ◽  
Kinetics And Mechanism ◽  
Intermediate Complex ◽  
Aliphatic Aldehydes ◽  
Rate Determining Step ◽  
Mechanism Of Oxidation ◽  
Subsequent Decomposition

The oxidation of aliphatic aldehydes by benzyltrimethylammonium tribromide involves the formation of an intermediate complex and its subsequent decomposition in the rate-determining step to the corresponding carboxylic acid.

Kinetics and Mechanism of Oxidation of 4-(phenylazo)diphenylamine with Peroxydisulphate

1995 ◽  
Vol 192 (Part_1) ◽  
pp. 87-99 ◽  
Author(s):  
Mohamed A. Salem ◽  
Ahmed B. Zaki ◽  
Azza A. Ismail ◽  
Mohamed Y. El-Sheikh
Keyword(s):  
Kinetics And Mechanism ◽  
Mechanism Of Oxidation

Kinetics and mechanism of the reduction of CrVI to CrIII by D-ribose and 2-deoxy-D-ribose

1999 ◽  
Vol 77 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Verónica Daier ◽  
Sandra Signorella ◽  
Marcela Rizzotto ◽  
María Inés Frascaroli ◽  
Claudia Palopoli ◽  
...  
Keyword(s):  
Redox Reaction ◽  
Kinetics And Mechanism ◽  
Epr Spectra ◽  
Oxidation Reactions ◽  
Redox Mechanism ◽  
Rate Laws ◽  
Aldonic Acid

The oxidation of D-ribose and 2-deoxy-D-ribose by CrVI yields the aldonic acid and Cr3+ as final products when an excess of sugar over CrVI is used. The redox reaction occurs through CrVI–>CrIII and CrVI–>CrV–>CrIII paths. The complete rate laws for the CrVI oxidation reactions are expressed by -d[CrVI]/dt = kH[H+]2 [ribose][CrVI], where kH = (5.9 ± 0.1) × 10-2 mol-3 dm9 s-1, and -d[CrVI]/dt = (k0 + kH'[H+]2) [2-deoxyribose][CrVI], where k0 = (1.3 ± 0.5) × 10-3 mol-1 dm3 s-1 and kH' = (4.2 ± 0.1) × 10-2 mol-3 dm9 s-1, at 33°C. An intermediate sugar alkoxide radical could be trapped with DMPO and observed by EPR as a multiline signal at g = 2.003. CrV is formed in a rapid step by reaction of the sugar radical with CrVI. CrV reacts with the substrate faster than CrVI does. The EPR spectra show that five- and six-coordinate oxochromate(V) intermediates are formed, and the distribution of these CrV species in the reaction mixture essentially depends on the solution acidity.Key words: ribose, 2-deoxyribose, chromium, redox, mechanism, kinetics.

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