A series of meso-thienyl-substituted porphyrins with different porphyrin cores such as N3S, N2S2 and N3O were synthesized and characterized. The thienyl groups at the meso-carbon atoms change the electronic properties of the porphyrinring. The X-ray structure solved for the N2S2 porphyrin with four meso-thienyl groups showed supramolecular assembly formation in the solid state due to C−H···N hydrogen