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Synthesis of a tube-like tetra-bipyridyl, tetra-ethylacetato-calix[4]arene in 1,3-alternate conformation and the unexpected crystal structure of its [bpy(CoCl2)]3-[bpy(CoCl2)(H2O)] complex.

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Název: Synthesis of a tube-like tetra-bipyridyl, tetra-ethylacetato-calix[4]arene in 1,3-alternate conformation and the unexpected crystal structure of its [bpy(CoCl2)]3-[bpy(CoCl2)(H2O)] complex.
Autoři: Mourer, Maxime, Bouizi, Younes, Leclerc, Sébastien, Malaman, Bernard, Regnouf de Vains, Jean-Bernard
Zdroj: New Journal of Chemistry; 9/21/2024, Vol. 48 Issue 35, p15577-15589, 13p
Témata: BIPYRIDINE, LIGANDS (Chemistry), CRYSTAL structure, X-ray diffraction, COBALT
Abstrakt: Treating conic tetra-para-ethylacetato-calix[4]arene (1) with 2.2 equivalents of K2CO3 and 4 equivalents of 6-bromomethyl-6′-methyl-2,2′-bipyridine affords the expected fully substituted podand, mainly in its 1,3-alternate conformation (2). This tube-like bipyridyl derivative 2 was subjected to complexation studies with CoCl2·6H2O to give a blue tetra cobalt(II) complex species (3). This complex displays a unique group of 6 aromatic bipyridyl 1H-NMR resonance signals demonstrating its high symmetry, while X-ray diffraction studies showed the presence of 3 expected tetrahedral bpy(CoCl2) units and 1 original trigonal bipyramidal unit involving the adjunction of a fifth ligand assumed to be H2O that could participate in the crystal scaffold. [ABSTRACT FROM AUTHOR]
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Synthesis of a tube-like tetra-bipyridyl, tetra-ethylacetato-calix[4]arene in 1,3-alternate conformation and the unexpected crystal structure of its [bpy(CoCl<subscript>2</subscript>)]<subscript>3</subscript>-[bpy(CoCl<subscript>2</subscript>)(H<subscript>2</subscript>O)] complex.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Mourer%2C+Maxime%22">Mourer, Maxime</searchLink><br /><searchLink fieldCode="AR" term="%22Bouizi%2C+Younes%22">Bouizi, Younes</searchLink><br /><searchLink fieldCode="AR" term="%22Leclerc%2C+Sébastien%22">Leclerc, Sébastien</searchLink><br /><searchLink fieldCode="AR" term="%22Malaman%2C+Bernard%22">Malaman, Bernard</searchLink><br /><searchLink fieldCode="AR" term="%22Regnouf+de+Vains%2C+Jean-Bernard%22">Regnouf de Vains, Jean-Bernard</searchLink>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: New Journal of Chemistry; 9/21/2024, Vol. 48 Issue 35, p15577-15589, 13p
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22BIPYRIDINE%22">BIPYRIDINE</searchLink><br /><searchLink fieldCode="DE" term="%22LIGANDS+%28Chemistry%29%22">LIGANDS (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22CRYSTAL+structure%22">CRYSTAL structure</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22COBALT%22">COBALT</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Treating conic tetra-para-ethylacetato-calix[4]arene (1) with 2.2 equivalents of K<subscript>2</subscript>CO<subscript>3</subscript> and 4 equivalents of 6-bromomethyl-6′-methyl-2,2′-bipyridine affords the expected fully substituted podand, mainly in its 1,3-alternate conformation (2). This tube-like bipyridyl derivative 2 was subjected to complexation studies with CoCl<subscript>2</subscript>·6H<subscript>2</subscript>O to give a blue tetra cobalt(II) complex species (3). This complex displays a unique group of 6 aromatic bipyridyl <superscript>1</superscript>H-NMR resonance signals demonstrating its high symmetry, while X-ray diffraction studies showed the presence of 3 expected tetrahedral bpy(CoCl<subscript>2</subscript>) units and 1 original trigonal bipyramidal unit involving the adjunction of a fifth ligand assumed to be H<subscript>2</subscript>O that could participate in the crystal scaffold. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of New Journal of Chemistry is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1039/d4nj02476a
    Languages:
      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 15577
    Subjects:
      – SubjectFull: BIPYRIDINE
        Type: general
      – SubjectFull: LIGANDS (Chemistry)
        Type: general
      – SubjectFull: CRYSTAL structure
        Type: general
      – SubjectFull: X-ray diffraction
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      – SubjectFull: COBALT
        Type: general
    Titles:
      – TitleFull: Synthesis of a tube-like tetra-bipyridyl, tetra-ethylacetato-calix[4]arene in 1,3-alternate conformation and the unexpected crystal structure of its [bpy(CoCl2)]3-[bpy(CoCl2)(H2O)] complex.
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            NameFull: Mourer, Maxime
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            NameFull: Leclerc, Sébastien
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            NameFull: Malaman, Bernard
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          Dates:
            – D: 21
              M: 09
              Text: 9/21/2024
              Type: published
              Y: 2024
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              Value: 48
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              Value: 35
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