Pyrazine control of the solid-state supramolecular chemistry of zinc phthalocyanine

Monoaxially ligated T-shaped and H-shaped supramolecular zinc(II) phthalocyaninato complexes with pyrazine are obtained. In both types of molecules the central Zn atom of ZnPc complexes with pyrazine exhibits 4 + 1 coordination. The UV-Vis spectrum shows the batochromic shift in the polar solvent like 1-chloronaphthalene in relation to the spectrum in non-polar solvent like benzene.