4-Cyanopyridine

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Habib Nasri - One of the best experts on this subject based on the ideXlab platform.

  • Effect of the coordination of π-acceptor 4-Cyanopyridine ligand on the structural and electronic properties of meso-tetra(para-methoxy) and meso-tetra(para-chlorophenyl) porphyrin cobalt(II) coordination compounds. Application in the catalytic degrad
    RSC Advances, 2020
    Co-Authors: Mouhieddinne Guergueb, Ilona Turowska-tyrk, Soumaya Nasri, Jihed Brahmi, Frédérique Loiseau, Florian Molton, Thierry Roisnel, Vincent Guérineau, Kaïss Aouadi, Habib Nasri
    Abstract:

    To examine the influence of both the important π-acceptor character of the 4-Cyanopyridine ligand and the nature of the para-substituted phenyls of meso-porphyrins on the electronic, electrochemical and structural properties of cobaltous metalloporphyrins, we prepared and fully characterized two coordination compounds: the (4-Cyanopyridine)[meso-tetra(para-methoxyphenyl)porphyrinato]cobalt(II) and the (4-Cyanopyridine)[meso-tetra(para-chlorophenyl)porphyrinato]cobalt(II) with the [CoII(TMPP)(4-CNpy)] and [CoII(TClPP)(4-CNpy)] formulas (complexes 1–2). The solution structures of compounds 1–2 were confirmed by 1H NMR spectroscopy and mass spectrometry methods. They were further characterized by cyclic voltammetry and photoluminescence studies. The X-ray molecular structure data show that the Co-TClPP-4-NCpy derivative (2) exhibits high ruffling deformation compared to that of the Co-TMPP-4-CNpy species (1). Notably, the crystal packing of complex 1 shows the formation of Co⋯Co supramolecular dimers with a distance of 5.663 A. As an application of our two cobaltous compounds, an investigation involving complexes 1–2 in the degradation of the methylene blue dye in the presence and absence of H2O2 in aqueous solutions was carried out. These promising results show that 1–2 can be used as catalysts in the degradation processes of dyes.

  • Effect of the coordination of pi-acceptor 4-Cyanopyridine ligand on the structural and electronic properties of meso-tetra(para-methoxy) and meso-tetra(para-chlorophenyl) porphyrin cobalt(ii) coordination compounds. Application in the catalytic degra
    RSC Advances, 2020
    Co-Authors: Mouhieddinne Guergueb, Ilona Turowska-tyrk, Soumaya Nasri, Jihed Brahmi, Frédérique Loiseau, Florian Molton, Thierry Roisnel, Vincent Guérineau, Kaïss Aouadi, Habib Nasri
    Abstract:

    To examine the influence of both the important pi-acceptor character of the 4-Cyanopyridine ligand and the nature of the para-substituted phenyls of meso-porphyrins on the electronic, electrochemical and structural properties of cobaltous metalloporphyrins, we prepared and fully characterized two coordination compounds the (4-Cyanopyridine)[meso-tetra(para-methoxyphenyl)porphyrinato]cobalt(ii) and the (4-Cyanopyridine)[meso-tetra(para-chlorophenyl)porphyrinato]cobalt(ii) with the [Co-II(TMPP)(4-CNpy)] and [Co-II(TClPP)(4-CNpy)] formulas (complexes 1-2). The solution structures of compounds 1-2 were confirmed by H-1 NMR spectroscopy and mass spectrometry methods. They were further characterized by cyclic voltammetry and photoluminescence studies. The X-ray molecular structure data show that the Co-TClPP-4-NCpy derivative (2) exhibits high ruffling deformation compared to that of the Co-TMPP-4-CNpy species (1). Notably, the crystal packing of complex 1 shows the formation of CoMIDLINE HORIZONTAL ELLIPSISCo supramolecular dimers with a distance of 5.663 angstrom. As an application of our two cobaltous compounds, an investigation involving complexes 1-2 in the degradation of the methylene blue dye in the presence and absence of H2O2 in aqueous solutions was carried out. These promising results show that 1-2 can be used as catalysts in the degradation processes of dyes.

  • New insights on the electronic, magnetic, electric and molecular structure of a bis-(4-Cyanopyridine) iron(III) complex with the meso-tetrakis(4-methoxyphenyl)porphyrin
    Inorganica Chimica Acta, 2019
    Co-Authors: Leila Ben Haj Hassen, Selma Dhifaoui, Yoann Rousselin, Valérie Marvaud, Christine Stern, Charles E. Schulz, Habib Nasri
    Abstract:

    We have successfully synthesized and characterized a new low-spin iron(III) bis(4-Cyanopyridine) complex with a meso-porphyrin substituted in the para positions of the phenyls by the methoxy group, namely the bis(4-Cyanopyridine)[(meso-tetrakis(4-metoxyphenylporphyrinato)]iron(III) trifluoromethanesulfonate chlorobenzene monosolvate complex with the formula [FeIII(TMPP)(4-CNpy)2]SO3CF3.C6H5Cl (I). This species was characterized through ultraviolet–visible, Fourier-transform infrared and Mossbauer spectroscopy as well as by SQUID magnetometry, cyclic voltammetry, and X-ray crystallography. These characterizations indicated that our synthetic heme model is a low-spin (S = 1/2) coordination compound and especially shows that the structural, electronic and the magnetic properties of complex (I) are closely dominated by the presence of the methoxy σ-donor group at the para positions of the meso-porphyrin.

William T Pennington - One of the best experts on this subject based on the ideXlab platform.

Rosa D Bailey - One of the best experts on this subject based on the ideXlab platform.

Xu Cheng - One of the best experts on this subject based on the ideXlab platform.

Mouhieddinne Guergueb - One of the best experts on this subject based on the ideXlab platform.

  • Effect of the coordination of π-acceptor 4-Cyanopyridine ligand on the structural and electronic properties of meso-tetra(para-methoxy) and meso-tetra(para-chlorophenyl) porphyrin cobalt(II) coordination compounds. Application in the catalytic degrad
    RSC Advances, 2020
    Co-Authors: Mouhieddinne Guergueb, Ilona Turowska-tyrk, Soumaya Nasri, Jihed Brahmi, Frédérique Loiseau, Florian Molton, Thierry Roisnel, Vincent Guérineau, Kaïss Aouadi, Habib Nasri
    Abstract:

    To examine the influence of both the important π-acceptor character of the 4-Cyanopyridine ligand and the nature of the para-substituted phenyls of meso-porphyrins on the electronic, electrochemical and structural properties of cobaltous metalloporphyrins, we prepared and fully characterized two coordination compounds: the (4-Cyanopyridine)[meso-tetra(para-methoxyphenyl)porphyrinato]cobalt(II) and the (4-Cyanopyridine)[meso-tetra(para-chlorophenyl)porphyrinato]cobalt(II) with the [CoII(TMPP)(4-CNpy)] and [CoII(TClPP)(4-CNpy)] formulas (complexes 1–2). The solution structures of compounds 1–2 were confirmed by 1H NMR spectroscopy and mass spectrometry methods. They were further characterized by cyclic voltammetry and photoluminescence studies. The X-ray molecular structure data show that the Co-TClPP-4-NCpy derivative (2) exhibits high ruffling deformation compared to that of the Co-TMPP-4-CNpy species (1). Notably, the crystal packing of complex 1 shows the formation of Co⋯Co supramolecular dimers with a distance of 5.663 A. As an application of our two cobaltous compounds, an investigation involving complexes 1–2 in the degradation of the methylene blue dye in the presence and absence of H2O2 in aqueous solutions was carried out. These promising results show that 1–2 can be used as catalysts in the degradation processes of dyes.

  • Effect of the coordination of pi-acceptor 4-Cyanopyridine ligand on the structural and electronic properties of meso-tetra(para-methoxy) and meso-tetra(para-chlorophenyl) porphyrin cobalt(ii) coordination compounds. Application in the catalytic degra
    RSC Advances, 2020
    Co-Authors: Mouhieddinne Guergueb, Ilona Turowska-tyrk, Soumaya Nasri, Jihed Brahmi, Frédérique Loiseau, Florian Molton, Thierry Roisnel, Vincent Guérineau, Kaïss Aouadi, Habib Nasri
    Abstract:

    To examine the influence of both the important pi-acceptor character of the 4-Cyanopyridine ligand and the nature of the para-substituted phenyls of meso-porphyrins on the electronic, electrochemical and structural properties of cobaltous metalloporphyrins, we prepared and fully characterized two coordination compounds the (4-Cyanopyridine)[meso-tetra(para-methoxyphenyl)porphyrinato]cobalt(ii) and the (4-Cyanopyridine)[meso-tetra(para-chlorophenyl)porphyrinato]cobalt(ii) with the [Co-II(TMPP)(4-CNpy)] and [Co-II(TClPP)(4-CNpy)] formulas (complexes 1-2). The solution structures of compounds 1-2 were confirmed by H-1 NMR spectroscopy and mass spectrometry methods. They were further characterized by cyclic voltammetry and photoluminescence studies. The X-ray molecular structure data show that the Co-TClPP-4-NCpy derivative (2) exhibits high ruffling deformation compared to that of the Co-TMPP-4-CNpy species (1). Notably, the crystal packing of complex 1 shows the formation of CoMIDLINE HORIZONTAL ELLIPSISCo supramolecular dimers with a distance of 5.663 angstrom. As an application of our two cobaltous compounds, an investigation involving complexes 1-2 in the degradation of the methylene blue dye in the presence and absence of H2O2 in aqueous solutions was carried out. These promising results show that 1-2 can be used as catalysts in the degradation processes of dyes.