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Préparation et caractérisation par Rayons X, par spectrométries UV- visible, IR, Mössbauer et RPE de composés thiolates de la phtalocyanine de fer,
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Discipline: Chimie
Auteur(s): M. BAYO-BANGOURA, K. BAYO, G. V. OUEDRAOGO, J. C. MOSSAYAN, G. TERZIAN, D. BENLIAN.
Renseignée par : BAYO Karifa
Résumé

Iron(II) phthalocyanine complexes with SR (R = CH3, CH2C6H5, C6H5, C6H4-pNO2) have been prepared in solid form. These complexes have been characterised by X-Ray diffraction, infrared, electronic, Mössbauer and EPR spectrometries.
The X-Ray diffraction of powder spectre show the characteristic lines of Fe-S entity. In infrared spectre, the complexation induces the apparition of Fe-Sand around 345 cm-1and some ligand bonds in the 2000-400 cm-1domain.
The analysis of electronic spectra lead to a pentacoordinated structure (FEPC(SR)). Mössbauer and EPR spectrometries permit to propose a state of mixture spin S=5/2 and S=1/2 for these compounds.

Mots-clés

Iron(II) phthalocyanine, thiolates complexes, characterisation

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