Synthesis, Characterization and Catalytic Studies of Chromium(III) Porphyrin Complex with axial cyanate ligands - Archive ouverte HAL
Article Dans Une Revue Journal of Molecular Structure Année : 2021

Synthesis, Characterization and Catalytic Studies of Chromium(III) Porphyrin Complex with axial cyanate ligands

Azhar Kechiche
  • Fonction : Auteur
Taissir Fradi
  • Fonction : Auteur
Olfa Noureddine
  • Fonction : Auteur
Mouhieddinne Guergueb
  • Fonction : Auteur
Noureddine Issoui
  • Fonction : Auteur
Habib Nasri
  • Fonction : Auteur
  • PersonId : 1061075

Résumé

We report the synthesis and the spectroscopic, structural and electrochemical characterization of a new chromium(III) coordination compound namely the bis(cyanato-N)[meso-tetratolylporphyrinato]chromate(III) (cryptand-222)potassium dihydrate [K(crypt-222)][CrIII(TTP)(NCO)2]•2H2O (complex I). This compound crystallizes in the orthorhombic crystal system with the non-centrosymmetric space group C2221. The chromium and the potassium atoms are located at special positions in a two-fold axis. The crystal lattice of complex I is stabilized by O-H…O, C-H…O, C-H…N and C-H…pi intermolecular contacts involving the negatively charged [CrIII(TTP)(NCO)2]- species, the [K(crypt-222)]+ counterions and the two non-coordinated water molecules. Further insights on these weak intermolecular contacts are provided by the Hirshfeld surface analysis. Molecular electrostatic potential (MEP) theoretical calculation on [K(crypt-222)][CrIII(TTP)(NCO)2]•2H2O are reported. The new Cr(III) complex was efficient as a catalyst in the decomposition of Rhodamine B (RbH) dye by hydrogen peroxide. This coordination compound was also tested as photocatalyst of the photodecomposition of RbH dye by molecular oxygen.
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Dates et versions

hal-03414766 , version 1 (04-11-2021)

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Azhar Kechiche, Taissir Fradi, Olfa Noureddine, Mouhieddinne Guergueb, Frédérique Loiseau, et al.. Synthesis, Characterization and Catalytic Studies of Chromium(III) Porphyrin Complex with axial cyanate ligands. Journal of Molecular Structure, 2021, 1250 (Part I), ⟨10.1016/j.molstruc.2021.131801⟩. ⟨hal-03414766⟩
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