Hemi and amphi-substituted μ-carbido iron diphthalocyanine having general formula (t- bu ) ₄PcFe-C-FePc and (t- bu ) ₄PcFe-C-FePc (t- bu )₄ have been oxidized with I₂. The oxidized compounds have been characterized and their physicochemical properties have been studied; the results obtained lead to assign them the formula [(t- Bu ) ₄PcFe-C-FePc ] (I₅)_0.66 and [[(t- Bu ) ₄PcFe ]₂ C ]] (I₅)_0.66 respectively. The conduction properties, related to the role played by the pushing groups inserted in the peripheral macrocycles, are discussed. Moreover, an effective purification method for improving the yield and purity of iron tetra-tert-butyl phthalocyanine is described, the difficulty being able to obtain this precursor with a high purity grade.