Synthesis of novel an axially substituted silicon phthalocyanine and determination of its selectivity for Fe 3

•Characterization and synthesis of novel axially silicon phthalocyanine.•Investigation of photophysical (fluorescence and quantum) properties.•Optical selective determination of Fe3+ ions of phthalocyanine.•Non -aggregation properties of compound is reported. This study includes the synthesis and characterization of an axial phthalocyanine complex. This phthalocyanine was characterized with the aid of NMR, FT-IR, Mass spectrum and UV–vis spectroscopy. The solubility scale of this compound in solvents and its absorption in different solvents were determined. In addition, axial phthalocyanine absorption measurements were made in the same solvent and at different concentrations. The compound was determined to be non-aggregation within the range of measured parameters. Fluorescence absorption, excitation and emission measurements were made in different solvents. The selectivity of Bis-2((4-phenoxyphenyl) diazenyl)benzoic acid) phthalocyaninato silicon (IV) compound to metal ions was investigated by UV-visible absorption spectra. Fe3+ ion selectively differed among the studied metals. This method reveals that it can be used for the optical determination of Fe3+ ion in the fields of environment, food and health.