FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022333604> ?p ?o ?g. }

• W2022333604 endingPage "2788" @default.
• W2022333604 startingPage "2780" @default.
• W2022333604 abstract "Rate constants for the proton/deuteron (H/D) exchange of methyltrioxorhenium(VII) (MTO) were determined in four organic solvents by means of time course 1H NMR measurements. Exchange between MTO and a deuterium donor proceeds only in the presence of a Lewis base; the reaction does not take place in neutral or acidified solutions. The kinetics depends on the bases, deuterium donors, and solvents. The observed pseudo-first-order rate constants (kψ) are negligibly small when coordinating bases are used but increase with noncoordinating bases. A direct relationship was found between kψ and the pKa values of the conjugate acids of the bases. With phenol-d6 as a deuterium donor (D) and 2,6-lutidine as a base (B), the rate law varies with solvents: kψ = ka[D][B] in benzene-d6 (ka = 1.95 × 10-3 kg2 mol-2 s-1); kψ = kaκ[D][B]/(1 + κ[D]) in chloroform-d (ka = 1.41 × 10-2 kg mol-1 s-1, κ = 0.79 kg mol-1); kψ = ka[B] in acetone-d6 and acetonitrile-d3 (ka = 1.22 × 10-2 and 3.87 × 10-2 kg mol-1 s-1, respectively) at 24.8 °C. The same treatment applies to the methanol-d4/lutidine system in benzene-d6, once allowance is made for formation of an MTO−methanol adduct. Reasonably rapid exchange under mild conditions reflects the acidic character of MTO, which may arise from its base-promoted keto/enol tautomerization. Three consecutive steps are suggested for the reaction mechanism: attack of a base on an MTO methyl proton, isomerization to the enol intermediate (I2), and H/D exchange between I2 and a deuterium donor." @default.
• W2022333604 created "2016-06-24" @default.
• W2022333604 creator A5033689528 @default.
• W2022333604 creator A5084394443 @default.
• W2022333604 date "2005-04-22" @default.
• W2022333604 modified "2023-09-25" @default.
• W2022333604 title "Proton−Deuteron Exchange Reactions of Methyltrioxorhenium(VII) in Organic Solvents" @default.
• W2022333604 cites W1532926043 @default.
• W2022333604 cites W1583334718 @default.
• W2022333604 cites W1973042717 @default.
• W2022333604 cites W1981614653 @default.
• W2022333604 cites W1982527215 @default.
• W2022333604 cites W1985803290 @default.
• W2022333604 cites W1986086078 @default.
• W2022333604 cites W1990280848 @default.
• W2022333604 cites W1990770573 @default.
• W2022333604 cites W1991503436 @default.
• W2022333604 cites W2003067975 @default.
• W2022333604 cites W2005661768 @default.
• W2022333604 cites W2009006903 @default.
• W2022333604 cites W2020824700 @default.
• W2022333604 cites W2027231597 @default.
• W2022333604 cites W2027963106 @default.
• W2022333604 cites W2028391299 @default.
• W2022333604 cites W2050364012 @default.
• W2022333604 cites W2052719703 @default.
• W2022333604 cites W2053418573 @default.
• W2022333604 cites W2069306399 @default.
• W2022333604 cites W2086758892 @default.
• W2022333604 cites W2092172512 @default.
• W2022333604 cites W2092578986 @default.
• W2022333604 cites W2121711139 @default.
• W2022333604 cites W2490606958 @default.
• W2022333604 cites W4211164182 @default.
• W2022333604 cites W4241778963 @default.
• W2022333604 doi "https://doi.org/10.1021/om049029s" @default.
• W2022333604 hasPublicationYear "2005" @default.
• W2022333604 type Work @default.
• W2022333604 sameAs 2022333604 @default.
• W2022333604 citedByCount "5" @default.
• W2022333604 countsByYear W20223336042014 @default.
• W2022333604 countsByYear W20223336042018 @default.
• W2022333604 crossrefType "journal-article" @default.
• W2022333604 hasAuthorship W2022333604A5033689528 @default.
• W2022333604 hasAuthorship W2022333604A5084394443 @default.
• W2022333604 hasConcept C108204754 @default.
• W2022333604 hasConcept C111233374 @default.
• W2022333604 hasConcept C121332964 @default.
• W2022333604 hasConcept C134306372 @default.
• W2022333604 hasConcept C148898269 @default.
• W2022333604 hasConcept C155647269 @default.
• W2022333604 hasConcept C161790260 @default.
• W2022333604 hasConcept C163638829 @default.
• W2022333604 hasConcept C167569220 @default.
• W2022333604 hasConcept C178790620 @default.
• W2022333604 hasConcept C185592680 @default.
• W2022333604 hasConcept C2777463227 @default.
• W2022333604 hasConcept C2777691172 @default.
• W2022333604 hasConcept C2779607525 @default.
• W2022333604 hasConcept C2781144210 @default.
• W2022333604 hasConcept C2781213060 @default.
• W2022333604 hasConcept C33923547 @default.
• W2022333604 hasConcept C42058472 @default.
• W2022333604 hasConcept C512968161 @default.
• W2022333604 hasConcept C54516573 @default.
• W2022333604 hasConcept C58364064 @default.
• W2022333604 hasConcept C62520636 @default.
• W2022333604 hasConcept C93391505 @default.
• W2022333604 hasConceptScore W2022333604C108204754 @default.
• W2022333604 hasConceptScore W2022333604C111233374 @default.
• W2022333604 hasConceptScore W2022333604C121332964 @default.
• W2022333604 hasConceptScore W2022333604C134306372 @default.
• W2022333604 hasConceptScore W2022333604C148898269 @default.
• W2022333604 hasConceptScore W2022333604C155647269 @default.
• W2022333604 hasConceptScore W2022333604C161790260 @default.
• W2022333604 hasConceptScore W2022333604C163638829 @default.
• W2022333604 hasConceptScore W2022333604C167569220 @default.
• W2022333604 hasConceptScore W2022333604C178790620 @default.
• W2022333604 hasConceptScore W2022333604C185592680 @default.
• W2022333604 hasConceptScore W2022333604C2777463227 @default.
• W2022333604 hasConceptScore W2022333604C2777691172 @default.
• W2022333604 hasConceptScore W2022333604C2779607525 @default.
• W2022333604 hasConceptScore W2022333604C2781144210 @default.
• W2022333604 hasConceptScore W2022333604C2781213060 @default.
• W2022333604 hasConceptScore W2022333604C33923547 @default.
• W2022333604 hasConceptScore W2022333604C42058472 @default.
• W2022333604 hasConceptScore W2022333604C512968161 @default.
• W2022333604 hasConceptScore W2022333604C54516573 @default.
• W2022333604 hasConceptScore W2022333604C58364064 @default.
• W2022333604 hasConceptScore W2022333604C62520636 @default.
• W2022333604 hasConceptScore W2022333604C93391505 @default.
• W2022333604 hasIssue "11" @default.
• W2022333604 hasLocation W20223336041 @default.
• W2022333604 hasOpenAccess W2022333604 @default.
• W2022333604 hasPrimaryLocation W20223336041 @default.
• W2022333604 hasRelatedWork W1975343907 @default.
• W2022333604 hasRelatedWork W1978622520 @default.
• W2022333604 hasRelatedWork W1990066675 @default.

• next