Title of article :
Imidazole ligand effect on O2 interaction with metalloporphyrins
Author/Authors :
Tsuda، نويسنده , , Muneyuki and Kasai، نويسنده , , Hideaki، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2007
Abstract :
We investigate the imidazole ligand effect on O2 interaction with metalloporphyrins (MPs) using ab initio density functional calculations. We select iron-porphyrin (FeP) and cobalt-porphyrin (CoP) as MPs, and compare MP with (imidazole)MP [(Im)MP] including their O2 adducts. The O–O bond of (Im)MP–O2 tends to be weaker than that of MP–O2 due to more accessible back-donation to O2, resulting from a strong electron push from the imidazole ligand, though the effect is not true for the interaction of excited singlet O2.
Keywords :
Imidazole , Oxygen , Adsorption , Density functional calculations , Dissociation , Metalloporphyrin
Journal title :
Surface Science
Journal title :
Surface Science