In addition, the complexation of P1 with complementary entities (palladium II dichloride, terephtalic
acid and 1,4 - diodobenzene) to form supramolecular network was also investigated by infrared spectroscopy in solid state, the coordination with PdII beuing observed by as strong shift of the C - N bond stretching of the
pyridine unit compared to the pedestal alone (1591 → 1609 cm - 1).