Matches in SemOpenAlex for { <https://semopenalex.org/work/W4244533422> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W4244533422 endingPage "351" @default.
- W4244533422 startingPage "341" @default.
- W4244533422 abstract "The electrochemical reduction of 1,1′-dioxy-2,2′-diphenyl-Δ3.3′-bi-3H-indole (I) in dimethylformamide (DMF) solution has been studied at mercury and platinum electrodes in the presence and absence of protonating agents. Voltammetric, controlled-potential coulometric, e.s.r. and u.v. spectroscopic techniques were employed in the study. In an aprotic medium (DMF with tetraethylammonium perchlorate as supporting electrolyte) the reduction proceeds in two reversible one-electron steps: first to a very stable anion radical, identified by e.s.r. spectrum, and then to the di-anion. In the presence of a protonating agent (BH) (pKBHd>15) the second reduction step shifts to more positive potentials, while the first is unchanged. With a large amount of (BH) a single two-electron step is observed, the corresponding 1,1′-di-hydroxy-2,2′-diphenyl-3,3′-bi-indole (II) being the reduction product. In the presence of a stronger protonic source (AH) (pKAHd<15) a new step, less negative than the two original bi-nitrone (I) reduction steps, appears. With the increase of (AH) concentration the new step increases and the two normal steps decrease. In the presence of a sufficient amount of (AH), the bi-nitrone (I) reduction exhibits a single two-electron step. The potentials of this overall reduction process depend linearly on the pKAHd values of acids investigated. A multi-step scheme suggested for the electrochemical reduction of (I) explains the various experimental results obtained." @default.
- W4244533422 created "2022-05-12" @default.
- W4244533422 creator A5023613756 @default.
- W4244533422 date "1974-04-10" @default.
- W4244533422 modified "2023-10-17" @default.
- W4244533422 title "Electrochemical behaviour of 1,1′-dioxy-2,2′-diphenyl-Δ3.3′-bi-3H-indole in dimethylformamide. effect of protonating agents of various strengths" @default.
- W4244533422 doi "https://doi.org/10.1016/0368-1874(74)87033-4" @default.
- W4244533422 hasPublicationYear "1974" @default.
- W4244533422 type Work @default.
- W4244533422 citedByCount "0" @default.
- W4244533422 crossrefType "journal-article" @default.
- W4244533422 hasAuthorship W4244533422A5023613756 @default.
- W4244533422 hasConcept C109379892 @default.
- W4244533422 hasConcept C145148216 @default.
- W4244533422 hasConcept C147789679 @default.
- W4244533422 hasConcept C155647269 @default.
- W4244533422 hasConcept C161790260 @default.
- W4244533422 hasConcept C17525397 @default.
- W4244533422 hasConcept C178790620 @default.
- W4244533422 hasConcept C179104552 @default.
- W4244533422 hasConcept C185592680 @default.
- W4244533422 hasConcept C188518856 @default.
- W4244533422 hasConcept C192527728 @default.
- W4244533422 hasConcept C2777712214 @default.
- W4244533422 hasConcept C2777869211 @default.
- W4244533422 hasConcept C2779440280 @default.
- W4244533422 hasConcept C2779664164 @default.
- W4244533422 hasConcept C2779896888 @default.
- W4244533422 hasConcept C2780471494 @default.
- W4244533422 hasConcept C2780709120 @default.
- W4244533422 hasConcept C30095370 @default.
- W4244533422 hasConcept C518104683 @default.
- W4244533422 hasConcept C52859227 @default.
- W4244533422 hasConcept C71240020 @default.
- W4244533422 hasConceptScore W4244533422C109379892 @default.
- W4244533422 hasConceptScore W4244533422C145148216 @default.
- W4244533422 hasConceptScore W4244533422C147789679 @default.
- W4244533422 hasConceptScore W4244533422C155647269 @default.
- W4244533422 hasConceptScore W4244533422C161790260 @default.
- W4244533422 hasConceptScore W4244533422C17525397 @default.
- W4244533422 hasConceptScore W4244533422C178790620 @default.
- W4244533422 hasConceptScore W4244533422C179104552 @default.
- W4244533422 hasConceptScore W4244533422C185592680 @default.
- W4244533422 hasConceptScore W4244533422C188518856 @default.
- W4244533422 hasConceptScore W4244533422C192527728 @default.
- W4244533422 hasConceptScore W4244533422C2777712214 @default.
- W4244533422 hasConceptScore W4244533422C2777869211 @default.
- W4244533422 hasConceptScore W4244533422C2779440280 @default.
- W4244533422 hasConceptScore W4244533422C2779664164 @default.
- W4244533422 hasConceptScore W4244533422C2779896888 @default.
- W4244533422 hasConceptScore W4244533422C2780471494 @default.
- W4244533422 hasConceptScore W4244533422C2780709120 @default.
- W4244533422 hasConceptScore W4244533422C30095370 @default.
- W4244533422 hasConceptScore W4244533422C518104683 @default.
- W4244533422 hasConceptScore W4244533422C52859227 @default.
- W4244533422 hasConceptScore W4244533422C71240020 @default.
- W4244533422 hasIssue "2" @default.
- W4244533422 hasLocation W42445334221 @default.
- W4244533422 hasOpenAccess W4244533422 @default.
- W4244533422 hasPrimaryLocation W42445334221 @default.
- W4244533422 hasRelatedWork W1971523982 @default.
- W4244533422 hasRelatedWork W1981569665 @default.
- W4244533422 hasRelatedWork W1985494250 @default.
- W4244533422 hasRelatedWork W2000548579 @default.
- W4244533422 hasRelatedWork W2086198306 @default.
- W4244533422 hasRelatedWork W4237950065 @default.
- W4244533422 hasRelatedWork W4248189347 @default.
- W4244533422 hasRelatedWork W4250517325 @default.
- W4244533422 hasRelatedWork W4255940007 @default.
- W4244533422 hasRelatedWork W2497445789 @default.
- W4244533422 hasVolume "51" @default.
- W4244533422 isParatext "false" @default.
- W4244533422 isRetracted "false" @default.
- W4244533422 workType "article" @default.