Electrodeposition 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 underpotential deposition (UPD) of 2D Pb phases could be ob(...)

Résumé 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 été préparés et caractérisés par spectrométries optique et(...)

Abstract: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’ = pyridine, 4-cyanopyridine (4CNpy), in reference to(...)