Synthesis, characterization, and biological screening of Co(II), Ni(II), Cu(II), Pd(II), and Pt(IV) complexes of a novel hydrazide–hydrazone ligand derived from gallic acid. Journal of Pharmaceutical Negative Results, [S. l.], v. 13, n. 4, p. 1152–1159, 2022. DOI: 10.47750/pnr.2022.13.04.161. Disponível em: https://mail.pnrjournal.com/index.php/home/article/view/3113.. Acesso em: 13 jun. 2026.