Origin of the red shift for the lowest singlet 'pi''SETA''pi' POT. *' charge-transfer absorption of p-nitroaniline in supercritical 'C''O' IND. 2' - Hidalgo, Marcelo; Rivelino, Roberto; Canuto, Sylvio Roberto Accioly (JOURNAL OF CHEMICAL THEORY AND COMPUTATION, 2014)