Bismuth porphyrins complexes are of interest for IR luminescence cancer diagnostics, since rather intense emission bands in the 800-920 nm range have been found. In connection with the COVID-19 pandemic, bismuth compounds are also of interest in the treatment of coronavirus infection. Due to the Covid-19 pandemic in 2020, bismuth compounds are of particular interest in the treatment of coronavirus infection. These complexes are also of significant interest for IR-luminescent diagnostics of cancer, since strong emission bands in the range of 800-950 nm were found. Bismuth porphyrins complexes of various spatial configurations were synthesized and their spectral-optical properties were investigated. The influence of various substituents on the spectral characteristics was evaluated by electronic absorption spectra, luminescence spectra, IR-, H NMR-spectroscopy. 1