Affiliation: | 1. Chemistry Institute, University of the State of Sao Paulo Julio de Mesquita Filho-UNESP, Francisco Degni, Araraquara-SP 14800-900, Brazil 2. LIEC-Chemistry Department, Federal University of Sao Carlos, Via Washington Luis Km 235, Sao Carlos-SP 13565-905, Brazil 3. University of Franca-UNIFRAN, Via Dr. Armando Sales de 0liveira, No. 201, Franca-SP 14404-600, Brazil 4. CCN-DQ-GERATEC, University of the State of Piauí, Joao Cabral, 2231, P.0. Box 391, Terezina, PI 64002-150, Brazil |