SEARCH Articles Figures Tables Models Pariser-Parr-Pople model Models Pariser-Parr-Pople model Pariser-Parr-Pople (PPP) Model Pariser-Parr-Pople model parametrizations Pariser-Parr-Pople-Peierls model Pople Predictions from the Pariser-Parr-Pople-Peierls model The Pariser-Parr-Pople Model The Pariser-Parr-Pople-Peierls model