Silva, Charles Biral, et al. “Solvent Effect, Photochemical and Photophysical Properties of Phthalocyanines With Different Metallic Nuclei”. Orbital: The Electronic Journal of Chemistry, vol. 9, no. 5, Dec. 2017, pp. 344-53, https://periodicos.ufms.br/index.php/orbital/article/view/16414.