Matches in SemOpenAlex for { <https://semopenalex.org/work/W3136752933> ?p ?o ?g. }
Showing items 1 to 87 of
87
with 100 items per page.
- W3136752933 startingPage "1" @default.
- W3136752933 abstract "The kinetics and mechanisms of the redox reaction of Catechol and μ-superoxo-bis[pentaamminecobalt(III)] pentachloridemonohydrate, [(NH3)5Co(O2)Co(NH3)5]Cl5.H2O, hereafter represented as CoO2Co5+ was studied in aqueous perchloric acid under pseudo-first-order conditions at 27±1°C, I=0.35mol dm-3 (NaClO4) and λmax=660nm. μ-superoxo-bis[pentaamminecobalt(III)] pentachloridemonohydrate was used as the oxidant and it was synthesized and characterized according to reported procedure. This study was aimed at generating kinetic data with respect to the oxidation of cathecol by µ-superoxo-bridged binuclear cobalt(III) complex of ammine and to propose plausible mechanism that underpin this reaction of interest. Effect of changes in acid concentration, ionic strength, dielectric constant and temperature on the reaction rate was investigated. The reaction was found to be first-order in both reactants, second-order overall, acid dependent and showed a negative Bronsted-Debye salt effect. Decreasing the dielectric constant from 80.1–74.01 (CH3COCH3/H2O) increased the rate of reaction. A large negative value of ΔS≠ (−224Jmol−1K−1) was obtained during the thermodynamic studies and that showed that the activated complex formed is more ordered. This confirmed that the reaction proceeded by associative mechanism. There was evidence for the presence of free radicals during the course of the reaction, but non to validate the formation of an intermediate complex. In overall, the results suggest an outer-sphere mechanism for the reaction. A probable mechanism is proposed." @default.
- W3136752933 created "2021-03-29" @default.
- W3136752933 creator A5022433138 @default.
- W3136752933 creator A5022615114 @default.
- W3136752933 creator A5032573298 @default.
- W3136752933 creator A5036052476 @default.
- W3136752933 date "2021-02-10" @default.
- W3136752933 modified "2023-09-23" @default.
- W3136752933 title "Kinetics and Mechanism of Oxidation of Catechol by Oxygenated [Co 2 (O 2 )(NH 3 ) 10 ] 5+ Complex" @default.
- W3136752933 doi "https://doi.org/10.11648/j.sf.20210201.11" @default.
- W3136752933 hasPublicationYear "2021" @default.
- W3136752933 type Work @default.
- W3136752933 sameAs 3136752933 @default.
- W3136752933 citedByCount "0" @default.
- W3136752933 crossrefType "journal-article" @default.
- W3136752933 hasAuthorship W3136752933A5022433138 @default.
- W3136752933 hasAuthorship W3136752933A5022615114 @default.
- W3136752933 hasAuthorship W3136752933A5032573298 @default.
- W3136752933 hasAuthorship W3136752933A5036052476 @default.
- W3136752933 hasConcept C121332964 @default.
- W3136752933 hasConcept C135502975 @default.
- W3136752933 hasConcept C139066938 @default.
- W3136752933 hasConcept C147789679 @default.
- W3136752933 hasConcept C148898269 @default.
- W3136752933 hasConcept C155647269 @default.
- W3136752933 hasConcept C161790260 @default.
- W3136752933 hasConcept C175113610 @default.
- W3136752933 hasConcept C178790620 @default.
- W3136752933 hasConcept C179104552 @default.
- W3136752933 hasConcept C184651966 @default.
- W3136752933 hasConcept C185592680 @default.
- W3136752933 hasConcept C187428577 @default.
- W3136752933 hasConcept C2777713698 @default.
- W3136752933 hasConcept C2778161354 @default.
- W3136752933 hasConcept C55904794 @default.
- W3136752933 hasConcept C62520636 @default.
- W3136752933 hasConcept C65024703 @default.
- W3136752933 hasConcept C93391505 @default.
- W3136752933 hasConceptScore W3136752933C121332964 @default.
- W3136752933 hasConceptScore W3136752933C135502975 @default.
- W3136752933 hasConceptScore W3136752933C139066938 @default.
- W3136752933 hasConceptScore W3136752933C147789679 @default.
- W3136752933 hasConceptScore W3136752933C148898269 @default.
- W3136752933 hasConceptScore W3136752933C155647269 @default.
- W3136752933 hasConceptScore W3136752933C161790260 @default.
- W3136752933 hasConceptScore W3136752933C175113610 @default.
- W3136752933 hasConceptScore W3136752933C178790620 @default.
- W3136752933 hasConceptScore W3136752933C179104552 @default.
- W3136752933 hasConceptScore W3136752933C184651966 @default.
- W3136752933 hasConceptScore W3136752933C185592680 @default.
- W3136752933 hasConceptScore W3136752933C187428577 @default.
- W3136752933 hasConceptScore W3136752933C2777713698 @default.
- W3136752933 hasConceptScore W3136752933C2778161354 @default.
- W3136752933 hasConceptScore W3136752933C55904794 @default.
- W3136752933 hasConceptScore W3136752933C62520636 @default.
- W3136752933 hasConceptScore W3136752933C65024703 @default.
- W3136752933 hasConceptScore W3136752933C93391505 @default.
- W3136752933 hasIssue "1" @default.
- W3136752933 hasLocation W31367529331 @default.
- W3136752933 hasOpenAccess W3136752933 @default.
- W3136752933 hasPrimaryLocation W31367529331 @default.
- W3136752933 hasRelatedWork W1568889318 @default.
- W3136752933 hasRelatedWork W1967307388 @default.
- W3136752933 hasRelatedWork W1978405039 @default.
- W3136752933 hasRelatedWork W1983404607 @default.
- W3136752933 hasRelatedWork W2003106076 @default.
- W3136752933 hasRelatedWork W2046474476 @default.
- W3136752933 hasRelatedWork W2063587788 @default.
- W3136752933 hasRelatedWork W2067167639 @default.
- W3136752933 hasRelatedWork W2070288398 @default.
- W3136752933 hasRelatedWork W2078084100 @default.
- W3136752933 hasRelatedWork W2081985501 @default.
- W3136752933 hasRelatedWork W2085304244 @default.
- W3136752933 hasRelatedWork W2096848143 @default.
- W3136752933 hasRelatedWork W2148968686 @default.
- W3136752933 hasRelatedWork W2166143137 @default.
- W3136752933 hasRelatedWork W2336136086 @default.
- W3136752933 hasRelatedWork W2602130058 @default.
- W3136752933 hasRelatedWork W2618935816 @default.
- W3136752933 hasRelatedWork W2952651527 @default.
- W3136752933 hasRelatedWork W3204246469 @default.
- W3136752933 hasVolume "2" @default.
- W3136752933 isParatext "false" @default.
- W3136752933 isRetracted "false" @default.
- W3136752933 magId "3136752933" @default.
- W3136752933 workType "article" @default.