Investigation of the photophysical and photochemical properties of peripherally tetra-substituted water-soluble zwitterionic and cationic zinc(ii) phthalocyanines.

In this study, 4-{4-[N-((3-dimethylamino)propyl)amide]phenoxy}phthalonitrile () and its zinc(ii) phthalocyanine derivative () were synthesized for the first time. 4-(N-((3-Dimethylamino)propyl)amide)phenoxy substituted zinc(ii) phthalocyanine () was converted to its water-soluble sulfobetaine (), betaine () and N-oxide () containing zwitterionic and quaternized cationic () derivatives. All newly synthesized compounds () were characterized by the combination of UV-vis, FT-IR, (1)H NMR, mass spectroscopy techniques and elemental analysis.

Crystal structure of 4-(3,4-di-cyano-phen-oxy)-N-[3-(di-methyl-amino)-prop-yl]benzamide mono-hydrate: a phen-oxy-phthalo-nitrile derivative.

In the title compound, C20H20N4O2·H2O, the planes of the phen-oxy and phthalo-nitrile rings are oriented at a dihedral angle of 60.39 (5)°. The 3-(di--methyl-amino)-propyl chain has an extended conformation and is cis with respect to the phthalo-nitrile ring.