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. 2023 Mar 24;19(7):1976–1985. doi: 10.1021/acs.jctc.2c01262

Table 1. Comparison of Vertical Transition Energies Using the Time and Energy Averaged Spectra from the Trajectories at 298 K, Employing the OM2/MNDO Method with Experimental Data.

    S1
S2
S3
molecule method λ [nm] f λ [nm] f λ [nm] f
sT OM2/MNDO 284 0.006 265 0.002 257 0.000
experiment 251   221      
character n–π*   n–π*   n–π*  
AT OM2/MNDO 273 0.000 240 0.005 236 0.002
experiment 262   221      
character n–π*   n–π*   π–π*  
DT OM2/MNDO 283 0.055 234 0.004 227 0.000
experiment 258   205      
character π–π*   n–π*   n–π*  
TT OM2/MNDO 243 0.000 231 0.003 225 0.000
experiment 241   206      
character π–π*   n–π*   n–π*  
5AC OM2/MNDO 295 0.000 258 0.052 240 0.004
experiment 250   226   205  
character n–π*   π–π*   n–π*  
Cyt OM2/MNDO 286 0.065 264 0.000 236 0.064
experiment 274 0.069 237 0.001 206 0.003
character π–π*   n–π*   n–π*