Water Exchange Reactivity and Stability of Cobalt Polyoxometalates under Catalytically Relevant pH Conditions: Insight into Water Oxidation Catalysis

Publikationstyp:
Zeitschriftenaufsatz
Metadaten:
Autoren
  • Dominik Lieb
  • Achim Zahl
  • Elizabeth F Wilson
  • Carsten Streb
  • Leanne C Nye
  • Karsten Meyer
  • Ivana Ivanovic-Burmazovic
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000294699700042&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1021/ic201243n
Externe Identifier
  • Clarivate Analytics Document Solution ID: 817TO
  • PubMed Identifier: 21809868
ISSN
0020-1669
Ausgabe der Veröffentlichung
18
Zeitschrift
INORGANIC CHEMISTRY
Paginierung
9053 - 9058
Datum der Veröffentlichung
2011
Status
Published
Titel
Water Exchange Reactivity and Stability of Cobalt Polyoxometalates under Catalytically Relevant pH Conditions: Insight into Water Oxidation Catalysis
Sub types
  • Article
Ausgabe der Zeitschrift
50

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:
Autoren
  • Dominik Lieb
  • Achim Zahl
  • Elizabeth F Wilson
  • Carsten Streb
  • Leanne C Nye
  • Karsten Meyer
  • Ivana Ivanović-Burmazović
DOI
10.1021/ic201243n
eISSN
1520-510X
ISSN
0020-1669
Ausgabe der Veröffentlichung
18
Zeitschrift
Inorganic Chemistry
Sprache
en
Online publication date
2011
Paginierung
9053 - 9058
Datum der Veröffentlichung
2011
Status
Published
Herausgeber
American Chemical Society (ACS)
Herausgeber URL
http://dx.doi.org/10.1021/ic201243n
Datum der Datenerfassung
2023
Titel
Water Exchange Reactivity and Stability of Cobalt Polyoxometalates under Catalytically Relevant pH Conditions: Insight into Water Oxidation Catalysis
Ausgabe der Zeitschrift
50

Datenquelle: Crossref

Abstract
Water exchange on a molecular, purely inorganic cobalt-based water oxidation catalyst, [Co(4)(II)(H(2)O)(2)(α-P(1)W(9)O(34))(2)](10-) (1), in the catalytically relevant pH region (pH 6-10) is studied using (17)O-NMR spectroscopy and ultrahigh-resolution electrospray ionization mass spectrometry. The results are compared with those of the inactive [Co(II)(H(2)O)(1)Si(1)W(11)O(39)](6-) (2), which is stable in the same pH region. The results obtained provide mechanistic details of the elementary reaction step related to the water oxidation on homogeneous metal oxide catalysts under catalytically relevant conditions. It is shown that the structural integrity of 1 and 2 is maintained, no deprotonation of the aqua ligands on the Co(II) centers occurs, and the water exchange does not undergo any mechanistic changeover at the catalytic pH conditions. We have demonstrated that the water exchange process is influenced by the cluster environment surrounding the water binding sites and is fast enough to not be rate-limiting for the water oxidation catalysis.
Addresses
  • Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany.
Autoren
  • Dominik Lieb
  • Achim Zahl
  • Elizabeth F Wilson
  • Carsten Streb
  • Leanne C Nye
  • Karsten Meyer
  • Ivana Ivanović-Burmazović
DOI
10.1021/ic201243n
eISSN
1520-510X
Externe Identifier
  • PubMed Identifier: 21809868
Open access
false
ISSN
0020-1669
Ausgabe der Veröffentlichung
18
Zeitschrift
Inorganic chemistry
Sprache
eng
Medium
Print-Electronic
Online publication date
2011
Paginierung
9053 - 9058
Datum der Veröffentlichung
2011
Status
Published
Datum der Datenerfassung
2011
Titel
Water exchange reactivity and stability of cobalt polyoxometalates under catalytically relevant pH conditions: insight into water oxidation catalysis.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
50

Datenquelle: Europe PubMed Central

Abstract
Water exchange on a molecular, purely inorganic cobalt-based water oxidation catalyst, [Co(4)(II)(H(2)O)(2)(α-P(1)W(9)O(34))(2)](10-) (1), in the catalytically relevant pH region (pH 6-10) is studied using (17)O-NMR spectroscopy and ultrahigh-resolution electrospray ionization mass spectrometry. The results are compared with those of the inactive [Co(II)(H(2)O)(1)Si(1)W(11)O(39)](6-) (2), which is stable in the same pH region. The results obtained provide mechanistic details of the elementary reaction step related to the water oxidation on homogeneous metal oxide catalysts under catalytically relevant conditions. It is shown that the structural integrity of 1 and 2 is maintained, no deprotonation of the aqua ligands on the Co(II) centers occurs, and the water exchange does not undergo any mechanistic changeover at the catalytic pH conditions. We have demonstrated that the water exchange process is influenced by the cluster environment surrounding the water binding sites and is fast enough to not be rate-limiting for the water oxidation catalysis.
Autoren
  • Dominik Lieb
  • Achim Zahl
  • Elizabeth F Wilson
  • Carsten Streb
  • Leanne C Nye
  • Karsten Meyer
  • Ivana Ivanović-Burmazović
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/21809868
DOI
10.1021/ic201243n
eISSN
1520-510X
Ausgabe der Veröffentlichung
18
Zeitschrift
Inorg Chem
Sprache
eng
Country
United States
Paginierung
9053 - 9058
Datum der Veröffentlichung
2011
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2012
Titel
Water exchange reactivity and stability of cobalt polyoxometalates under catalytically relevant pH conditions: insight into water oxidation catalysis.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
50

Datenquelle: PubMed

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