INVESTIGADORES
LAZARO MARTINEZ juan manuel
congresos y reuniones científicas
Título:
SSNMR Characterization of New Organic Compounds and Copper Complexes of Polymeric Structures
Autor/es:
ANA KARINA CHATTAH; JUAN MANUEL LÁZARO MARTÍNEZ; GUSTAVO ALBERTO MONTI; VIVIANA CAMPO DALL´ORTO; GRACIELA YOLANDA BULDAIN
Lugar:
Daytona Beach, Florida, USA
Reunión:
Conferencia; 51st ENC Experimental Nuclear Magnetic Resonance Conference; 2010
Resumen:
We applied advanced NMR techniques in solid state to study organic compounds and novel copper complexes of polyampholyte and polyelectrolyte polymeric structures. Remarkably, the copper-polyampholyte complex acts as an efficient heterogeneous catalyst for H2O2 activation and the degradation of Methyl Orange. Using 2D 1H-13C WISE NMR and proton spin-lattice relaxation times in the laboratory and rotating frame (TH1 and TH1rho), we analyzed the non-homogenous character of the doped and undoped materials. The effect of the paramagnetic ion in the structure of the polymers was also elucidated through these experiments. Additionally, 13C CP-MAS, 1H-13C HETCOR, and solution NMR spectra allowed us to conclude that the 2-carboxaldehydeimidazole molecule differed in the solution and in the solid-state after its synthetic process.