Artículos de revistas
A silver complex with ibuprofen: Synthesis, solid state characterization, DFT calculations and antibacterial assays
Registro en:
Journal Of Molecular Structure. Elsevier Science Bv, v. 1049, n. 1, n. 6, 2013.
0022-2860
WOS:000324784700001
10.1016/j.molstruc.2013.06.034
Autor
e Silva, IMP
Profirio, DD
de Paiva, REF
Lancellotti, M
Formiga, ALB
Corbi, PP
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The present work describes the synthesis of a silver(I) complex with the non-steroidal anti-inflammatory ibuprofen, Ag-ibu. Elemental and thermal analyses indicate a 1:1 metal/ligand composition. Thermogravimetric analysis shows that Ag-ibu decomposition starts at 180 degrees C, and ends at 400 degrees C (mass loss 64.6%; calcd. 65.5%). UV/Vis kinetic measurements suggest the decomposition of Ag-ibu in dimethyl sulfoxide, with the appearance of a broad band in the spectrum of the complex in the range 300-500 nm. Infrared and solid state C-13 NMR spectra show the coordination of ibuprofen to silver through the carboxylate group. The DFT calculations led us to. propose a dimeric silver bridging structure for the complex. Biological studies show the antibacterial activity of the Ag-ibu complex against Gram-positive and Gram-negative bacterial strains, with MIC values ranging from 6.25 to 12.5 mu g mL(-1). (c) 2013 Elsevier B.V. All rights reserved. 1049 1 6 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) FAPESP [2012/08230-2]