Synthesized Tetrakis (2-oxy benzylidene) - hyroanthracen-2-yloxy zinc and cobalt (II) Phthalocyanines: Structural, DFT and SEM-EDS study

The Synthesis reaction, structural, spectroscopic, and binding characteristics of new Zn(II) and Co(II) phthalocyanine (Pc) complexes, denoted as Co-Pc (4) and Zn-Pc (5), respectively, containing two (2-oxybenzylidene) anthracene-dione groups, are described. Following the synthesis of 3-[(6-hydroxy-9,10-dihydroanthracen-2-yloxy)phthalonitrile] 3, Zinc Phthalocyanine (Zn-Pc) 4 and Cobalt Phthalocyanine (Co-Pc) 5 were subsequently prepared via chemical reaction with zinc and cobalt salts in dimethylformamide under heat and vacuum conditions. SEM image analysis confirmed homogeneous formation for both Zn-Pc and Co-Pc compounds, with average size of 470 nm and 69 nm, respectively. Compounds 3, 4, and 5 were characterized using elemental analysis, UV–Visible spectroscopy, Fourier Transform-Infrared Spectroscopy, 1H-Nucleer Magnetic Resonans Spectroscopy, and Q-TOF MS. Additionally, Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT) calculations were performed to investigate the structural and electronic properties of compounds 4 and 5. Many phthalocyanine compounds have been synthesized to date, however, the synthesis of Compound 4 with corrosion inhibitors properties is particularly significant in this research.