1 Ocak 2009 Dergi makalesi Açık Erişim

Isci, Uemit; Afanasiev, Pavel; Millet, Jean-Marc M.; Kudrik, Evgeny V.; Ahsen, Vefa; Sorokin, Alexander B.

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/93697</identifier>
  <creators>
    <creator>
      <creatorName>Isci, Uemit</creatorName>
      <givenName>Uemit</givenName>
      <familyName>Isci</familyName>
    </creator>
    <creator>
      <creatorName>Afanasiev, Pavel</creatorName>
      <givenName>Pavel</givenName>
      <familyName>Afanasiev</familyName>
      <affiliation>Univ Lyon 1, IRCELYON, CNRS, UMR 5256, F-69626 Villeurbanne, France</affiliation>
    </creator>
    <creator>
      <creatorName>Millet, Jean-Marc M.</creatorName>
      <givenName>Jean-Marc M.</givenName>
      <familyName>Millet</familyName>
      <affiliation>Univ Lyon 1, IRCELYON, CNRS, UMR 5256, F-69626 Villeurbanne, France</affiliation>
    </creator>
    <creator>
      <creatorName>Kudrik, Evgeny V.</creatorName>
      <givenName>Evgeny V.</givenName>
      <familyName>Kudrik</familyName>
      <affiliation>Univ Lyon 1, IRCELYON, CNRS, UMR 5256, F-69626 Villeurbanne, France</affiliation>
    </creator>
    <creator>
      <creatorName>Ahsen, Vefa</creatorName>
      <givenName>Vefa</givenName>
      <familyName>Ahsen</familyName>
    </creator>
    <creator>
      <creatorName>Sorokin, Alexander B.</creatorName>
      <givenName>Alexander B.</givenName>
      <familyName>Sorokin</familyName>
      <affiliation>Univ Lyon 1, IRCELYON, CNRS, UMR 5256, F-69626 Villeurbanne, France</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Preparation And Characterization Of Mu-Nitrido Diiron Phthalocyanines With Electron-Withdrawing Substituents: Application For Catalytic Aromatic Oxidation</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2009</publicationYear>
  <dates>
    <date dateType="Issued">2009-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/93697</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1039/b902592h</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">mu-Nitrido-bis [tetra-(hexyl-sulfonyl)phthalocyaninatoiron] (3a) and mu-nitrido-bis [tetra-(tert-butylsulfonyl)phthalocyaninatoiron] (3b) complexes have been prepared and fully characterized by electrospray ionization mass spectrometry, UV-Vis, FTIR, EPR, Mossbauer techniques as well as by X-ray photoelectron and Fe K-edge X-ray absorption spectroscopies. Small changes at the periphery of the phthalocyanine ligand introduce a difference in the iron oxidation state. While 3b with tert-butyl substituents is a neutral complex with a mixed-valence Fe-3.5-N-Fe-3.5 structural unit, 3a having n-hexyl substituents is an oxidized cationic Fe-IV-N-Fe-IV complex. The structural parameters of N-bridged diiron phthalocyanine with a Fe-3.5-N-Fe-3.5 unit were determined for the first time. Iron atoms in 3b are displaced out of plane by 0.24 angstrom and the Fe-N bond distance of the linear Fe-N-Fe fragment is equal to 1.67 angstrom. Both complexes selectively catalyze benzylic oxidation of alkyl aromatic compounds by (BuOOH)-Bu-t. Toluene was oxidized to benzoic acid with 80% selectivity, and the total turnover number was as high as 197. p-Toluic acid was the principal product of p-xylene oxidation. In this case the turnover number achieved 587 substrate molecules per molecule of catalyst. The described catalytic system is complementary to the recently reported system based on mu-nitrido diiron tetrabutylphthalocyanine-H2O2 which effectively oxidizes the benzene ring.</description>
  </descriptions>
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