All the calculations are carried out including the polarizable continuum model with the integral equation formalism variant to mimic the toluene environment in experiments within Q-Chem 5.2 software package. The full time-dependent density functional theory (TDDFT) and its Tamm-Dancoff approximation (TDA) as well as 2th order algebraic diagrammatic construction (ADC(2)) 72 are adopted to evaluate the singlet and triplet excitedstates. In addition, 6-311++G** basis set is used for all the (TD)DFT calculations while a correlation consistent basis set, cc-pVDZ, is chosen for the ADC(2) method. The optimal structures of ground-and excited-states of 7-PhQAD molecule are optimized by DFT and TDA methods with CAM-B3LYP* functional, respectively. The Multiwfn3.7 package 73,74 is adopted to plot the MOs involved in the corresponding electronic excitations and the charge density differences between the corresponding excited states and ground state.