Synthesis of Ni(II), Cu(II) and Zn(II) coumarin-3-carboxilic acid derivates and their and their physical-chemical properties. Research, Society and Development, [S. l.], v. 10, n. 3, p. e47910313430, 2021. DOI: 10.33448/rsd-v10i3.13430. Disponível em: https://rsdjournal.org/rsd/article/view/13430. Acesso em: 5 dec. 2025.