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. 2021 May 29;7(6):e07171. doi: 10.1016/j.heliyon.2021.e07171

Table 1.

The energy of HOMOs, LUMOs, and Egap at B3LYP/6–31 G (d, p) level of theory for the compounds Di (i = 1–6) and R. In the parenthesis, the experimental values are given.

Dye EHOMO ELUMO Egap
R -5.01 (-5.07) -2.88 (-2.88) 2.13 (2.19)
D1 -5.20 -3.33 1.87
D2 -5.15 -3.40 1.76
D3 -5.20 -3.25 1.96
D4 -5.16 -3.41 1.75
D5 -5.16 -3.73 1.43
D6 -5.03 -3.50 1.53