Phthalocyaninatoiron complexes with tridentate ligands

Iron phthalocyanine was reacted with an excess of the tridendate ligand 2,4 ,6-tri-(4'-pyridyl)-s-triazine (tri, 1) to afford the monomeric complex PcF e(tri)(2) (2) while it gave the polymer [PcFe(tri)](n) (3) when equimolar a mounts of the substrates were used. The ligand 1 could be coordinated to th ree phthalocyaninine units by reacting PcFe(t-buNC)(2) (4) and (t-bu)(4)PcF e(t-buNC)(2) (5) to give the corresponding trimer, tri[R4PcFe(t-buNC)](3), R = H (10) and R = t-bu (11). In addition to IR, UV-Vis and NMR spectroscop y, the newly formed complexes were also characterized by Fe-57 Mossbauer sp ectroscopy. (C) 1999 Elsevier Science S.A. All rights reserved.