Publications (188)
ARTICLE
Preparation and analysis by UV-Vis of zinc phthalocyanine complexes
K. Bayo, J.C. Mossoyan , G.V. OuedraogoWe have prepared and isolated a series of zinc phthalocyanine complexes (ZnPc, ZnPcF8, biZnPc, F12biZnPc). These compounds have been
analyzed by electronic spectrometry. The analysis of results demonstrates that the importance of intramolecular interactions in the binuclear
species depends on...
ARTICLE
IR and UV-Visible spectra of iron (II) phthalocyanine complexes with phosphine or phosphite
A. Zanguina, M. Bayo - Bangoura, K. Bayo, G.V. Ouédraogo.We have prepared and studied by vibrational and electronic spectrometry of a series
of ferrophthalocyanine complexes with phosphine or phosphite axial ligands [PMe3, P(OMe)3, PPh3, P(OPh)3, PPh(OMe)3 and POH(OEt)2]. With PMe3, P(OMe)3 as ligands, only hexacoordinated
complexes are obtained but...
ARTICLE
Chromatographic determination of 8-oxo-7,8-dihydro-2′-deoxyguanosine in cellular DNA: A validation study
Pierre Duez, M Helson, Touridomon Issa Some, Jacques Dubois and M HanocqAlthough a series of biomarkers are widely used for the estimation of oxidative damage to biomolecules, validations of the analytical methods have seldom been presented. Formal validation, that is the study of the analytical performances of a method, is however recognized as the best safeguard...
ARTICLE
Growth in Electrodeposition of Metals on n-Si (111)
Krumm, B. Guel, C.Schmitz and G. Staikov,andInitial stages of electrodeposition of Tl, Cd and Cu on n-Si(111) from sulfate electrolyte solutions are studied using cyclic voltammetry and chronoamperometry. Capacitance measurements in metal ion free solutions were used to determine the flat band potential of n-Si. Results show that the...
ARTICLE
Nucleation and growth in electrodeposition of metals on n-Si(111)
R. Krumm a, B. Guel b, C. Schmitz a, G. Staikov a,*Initial stages of electrodeposition of Tl, Cd and Cu on n-Si(111) from sulfate electrolyte solutions are studied using cyclic voltammetry and chronoamperometry. Capacitance measurements in metal ion free solutions were used to determine the flat band potential of n-Si. Results show that the...
ARTICLE
Electrodeposition of Pb on n-Si (111)
B. Rashkova, B. Guel, R.T. Pötzschke, G. Staïkov and W. J. LorenzElectrodeposition of lead was studied in the system n-Si(111)/Pb2+, ClO4
ÿ, H+ using cyclic voltammetry, chronoamperometry, ex situ optical microscopy and in situ scanning probe microscopy (SPM).
Comparative studies were also performed in the system HOPG(0001)/Pb2+, ClO4
ÿ, H+. No...
ARTICLE
Dérivés substitués de la ferrophtalocyanine
Karifa Bayo, Adama Saba, Guy Venance Ouedraogo, Georges Terzian et David BenlianRésumé
La ferrophtalocyanine (PcFe), des ferrophtalocyanines subsituées en périphérie
(CH3)8PcFeII, Cl16PcFeII, Br16PcFeII, (COONa)4PcFeII et les complexes derivés comportant
des ligands axiaux [pyridine (Py) et pyridines substituées (PyR avec R= Me, -CH2OH, -CHO,
Cl, OH, CN) ont...
ARTICLE
UV-VISIBLE AND IR SPECTRA OF IRON(II) PHTHALOCYANINE POLYMER COMPLEXES LINKED BY BIS-PYRIDINATO LIGANDS
KARIFA BAY0, GUY VENANCE OUEDRAOGO, GEORGES TERZIAN and DAVID BENLIANAbstract:The spectra of iron(II) phthalocyanine polymer complexes (FePcL)n with bispyridinato bridging ligands, where L = 44’-bipyridine (bpy), trans-1,2-(4-pyridyl)ethylene
(bpe), 1,2-bis-(4-pyridyl)ethane (bpa), are discussed in comparison with the spectra of FeIIPc
and FePcL'2, where L’...