Vibrational Spectroscopic Analysis of 1,3-Dianiline Squarate: Infrared, Normal Raman, Surface-Enhanced Raman Scattering, and Density Functional Theory Calculations - Oliveira, Vanessa de; Cunha, Antônio Rodrigues da; Rizzutto, Márcia de Almeida; Lamy, Maria Teresa Moura; Oliveira, Luiz Fernando Cappa de; Milán-Garcés, Erix Alexander (Journal of Physical Chemistry C, 2023)