Matches in SemOpenAlex for { <https://semopenalex.org/work/W2080201174> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2080201174 abstract "Abstract Rate constants and activation parameters for water exchange on hexaaqua‐ and monohydroxypentaaquarhodium(III) were determined by 17 O NMR as a function of temperature (323–364 K) and pressure (up to 210 MPa, at 323 K) at several acidities (1.0–5.0 molal HClO 4 ). The observed rate constant was of the form k ex = k 1 + k 2 /[H + ], where the subscripts 1 and 2 refer to the exchange pathways on Rh(H 2 O) 6 3+ and Rh(H 2 O) 5 (OH) 2+ , respectively. The kinetic parameters are as follows: k 1 298 = 2.2 × 10 −9 s −1 , Δ H 1 ‡ = 131 ± 23 kJ mol −1 , Δ S 1 ‡ = + 29 ± 69 J K −1 mol −1 , Δ V 1 ‡ = −4.2 ± 0.6 cm 3 mol −1 ; k 2 298 = 1.5 × 10 −8 m s −1 , Δ H 2 ‡ = 136 ± 7 kJ mol −1 , Δ S 2 ‡ = + 61 ± 21 J K −1 mol −1 , Δ V 2 ‡ = + 1.3 ± 0.3 cm 3 mol −1 . The thermodynamic parameters for the acid dissociation reaction of Rh(H 2 O) 6 3+ were determined potentiometrically and spectrophotometrically: p K a 298 = 3.45 and Δ V a 0 = −0.2 ± 0.5 cm 3 mol −1 . Values were estimated for the first‐order rate constant (using the relationship k 2 = k OH K a ) and the corresponding activation volume for Rh(H 2 O) 5 (OH) 2+ : k OH 298 = 4.2 × 10 −5 s −1 and Δ V OH ‡ = + 1.5 cm 3 mol −1 . The kinetic results imply an associative interchange mechanism I a for Rh(H 2 O) 6 3+ and an interchange mechanism I with a slight dissociative character for the strongly OH labilized Rh(H 2 O) 5 (OH) 2+ species." @default.
- W2080201174 created "2016-06-24" @default.
- W2080201174 creator A5004194022 @default.
- W2080201174 creator A5006082492 @default.
- W2080201174 creator A5041820901 @default.
- W2080201174 creator A5063638903 @default.
- W2080201174 date "1991-10-01" @default.
- W2080201174 modified "2023-10-18" @default.
- W2080201174 title "Variable‐pressure oxygen‐17 NMR study of water exchange on hexaaquarhodium(III)" @default.
- W2080201174 cites W1600025620 @default.
- W2080201174 cites W1966267304 @default.
- W2080201174 cites W1970476080 @default.
- W2080201174 cites W1972810916 @default.
- W2080201174 cites W1986497047 @default.
- W2080201174 cites W1988616589 @default.
- W2080201174 cites W1990367154 @default.
- W2080201174 cites W2001484482 @default.
- W2080201174 cites W2001904000 @default.
- W2080201174 cites W2004779385 @default.
- W2080201174 cites W2005388964 @default.
- W2080201174 cites W2012996312 @default.
- W2080201174 cites W2018144455 @default.
- W2080201174 cites W2034628748 @default.
- W2080201174 cites W2040380684 @default.
- W2080201174 cites W2040973051 @default.
- W2080201174 cites W2041072491 @default.
- W2080201174 cites W2050795027 @default.
- W2080201174 cites W2084821912 @default.
- W2080201174 cites W2095588052 @default.
- W2080201174 cites W2145196256 @default.
- W2080201174 cites W2166910009 @default.
- W2080201174 cites W2167590372 @default.
- W2080201174 cites W2331615624 @default.
- W2080201174 cites W94792050 @default.
- W2080201174 doi "https://doi.org/10.1002/mrc.1260291311" @default.
- W2080201174 hasPublicationYear "1991" @default.
- W2080201174 type Work @default.
- W2080201174 sameAs 2080201174 @default.
- W2080201174 citedByCount "64" @default.
- W2080201174 countsByYear W20802011742012 @default.
- W2080201174 countsByYear W20802011742014 @default.
- W2080201174 countsByYear W20802011742015 @default.
- W2080201174 countsByYear W20802011742018 @default.
- W2080201174 countsByYear W20802011742023 @default.
- W2080201174 crossrefType "journal-article" @default.
- W2080201174 hasAuthorship W2080201174A5004194022 @default.
- W2080201174 hasAuthorship W2080201174A5006082492 @default.
- W2080201174 hasAuthorship W2080201174A5041820901 @default.
- W2080201174 hasAuthorship W2080201174A5063638903 @default.
- W2080201174 hasConcept C102931765 @default.
- W2080201174 hasConcept C113196181 @default.
- W2080201174 hasConcept C121332964 @default.
- W2080201174 hasConcept C135889238 @default.
- W2080201174 hasConcept C147789679 @default.
- W2080201174 hasConcept C148898269 @default.
- W2080201174 hasConcept C16946580 @default.
- W2080201174 hasConcept C178790620 @default.
- W2080201174 hasConcept C184651966 @default.
- W2080201174 hasConcept C185592680 @default.
- W2080201174 hasConcept C540031477 @default.
- W2080201174 hasConcept C62520636 @default.
- W2080201174 hasConcept C93391505 @default.
- W2080201174 hasConceptScore W2080201174C102931765 @default.
- W2080201174 hasConceptScore W2080201174C113196181 @default.
- W2080201174 hasConceptScore W2080201174C121332964 @default.
- W2080201174 hasConceptScore W2080201174C135889238 @default.
- W2080201174 hasConceptScore W2080201174C147789679 @default.
- W2080201174 hasConceptScore W2080201174C148898269 @default.
- W2080201174 hasConceptScore W2080201174C16946580 @default.
- W2080201174 hasConceptScore W2080201174C178790620 @default.
- W2080201174 hasConceptScore W2080201174C184651966 @default.
- W2080201174 hasConceptScore W2080201174C185592680 @default.
- W2080201174 hasConceptScore W2080201174C540031477 @default.
- W2080201174 hasConceptScore W2080201174C62520636 @default.
- W2080201174 hasConceptScore W2080201174C93391505 @default.
- W2080201174 hasIssue "13" @default.
- W2080201174 hasLocation W20802011741 @default.
- W2080201174 hasOpenAccess W2080201174 @default.
- W2080201174 hasPrimaryLocation W20802011741 @default.
- W2080201174 hasRelatedWork W1974135797 @default.
- W2080201174 hasRelatedWork W1992195182 @default.
- W2080201174 hasRelatedWork W2003210918 @default.
- W2080201174 hasRelatedWork W2008348153 @default.
- W2080201174 hasRelatedWork W2070806756 @default.
- W2080201174 hasRelatedWork W2087909049 @default.
- W2080201174 hasRelatedWork W2096568798 @default.
- W2080201174 hasRelatedWork W2509306448 @default.
- W2080201174 hasRelatedWork W4249347131 @default.
- W2080201174 hasRelatedWork W861532742 @default.
- W2080201174 hasVolume "29" @default.
- W2080201174 isParatext "false" @default.
- W2080201174 isRetracted "false" @default.
- W2080201174 magId "2080201174" @default.
- W2080201174 workType "article" @default.