Probing the local environment of hybrid materials designed from ionic liquids and synthetic clay by Raman spectroscopy - Siqueira, Leonardo José Amaral de; Constantino, Vera Regina Leopoldo; Camilo, Fernanda Ferraz; Torresi, Roberto Manuel; Temperini, Márcia Laudelina Arruda; Ribeiro, Mauro Carlos Costa; Izumi, Celly Mieko Shinohara (Spectrochimica Acta Part A, 2014)