Photodynamic therapy represents an alternative and/or adjuvant method for the treatment of superficial tumors; this way, there is an increased interest regarding the design of new photosensitizers with improved properties. The aim of the paper is to study the interactions among five substituted porphyrins and some rhombellanes (seven cube-rhombellane homeomorphs, C-rbl, with amide structures). The aforementioned porphyrins have been characterized and have been docked to the surface of the

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... llanes; comparisons with the results obtained for fullerene C60 have been performed. The best binding affinities have been obtained for the fluoro-substituted porphyrin docked on the larger rhombellane structures. The results outline that the hydrophobicity of the ligands plays an important role and represents a good indicator of searching for porphyrins with hydrophobic character for future investigations.