Table 1 Predicted excited States of PFHxA molecule by TDDFT calculation.

From: Enhanced electrooxidation of per and polyfluoroalkyl substances on Boron doped diamond anode in the presence of vacuum ultraviolet irradiation

S

Excitation energy (nm)

Fa

Transition

1

217.60

0.00290

HOMO-1→LUMO

(25.3%)

HOMO→LUMO

(23.1%)

HOMO-1→LUMO + 2

(16.2%)

HOMO→LUMO + 2

(10.8%)

HOMO-1→LUMO + 1

(8.6%)

HOMO→LUMO + 1

(6.3%)

2

214.91

0.04520

HOMO→LUMO

(30.8%)

HOMO-1→LUMO

(19.2%)

HOMO→LUMO + 2

(13.1%)

HOMO-1→LUMO + 2

(12.7%)

HOMO→LUMO + 1

(8.0%)

HOMO-1→LUMO + 1

(7.2%)

3

192.51

0.01720

HOMO→LUMO

(37.0%)

HOMO→LUMO + 1

(34.2%)

HOMO→LUMO + 2

(18.3%)

4

187.33

0.02090

HOMO-1→LUMO

(49.4%)

HOMO-1→LUMO + 1

(28.5%)

HOMO-1→LUMO + 2

(16.2%)

5

184.66

0.01460

HOMO-2→LUMO

(94.4%)

6

176.86

0.01620

HOMO→LUMO + 1

(47.3%)

HOMO→LUMO + 2

(35.4%)

HOMO→LUMO + 3

(6.4%)

7

173.80

0.00130

HOMO-1→LUMO + 1

(55.2%)

HOMO-1→LUMO + 2

(32.1%)

HOMO-1→LUMO + 3

(6.1%)

8

172.09

0.02360

HOMO-2→LUMO + 1

(85.5%)

HOMO-2→LUMO + 2

(6.7%)

9

162.37

0.02510

HOMO→LUMO + 3

(49.3%)

HOMO-2→LUMO + 2

(24.1%)

HOMO-2→LUMO + 1

(6.5%)

10

159.21

0.02710

HOMO-2→LUMO + 2

(51.9%)

HOMO→LUMO + 3

(22.8%)

HOMO→LUMO + 2

(6.0%)

11

157.46

0.00640

HOMO-1→LUMO + 3

(74.0%)

HOMO-1→LUMO + 2

(11.6%)

12

154.26

0.03560

HOMO→LUMO + 4

(69.8%)

HOMO→LUMO + 2

(10.2%)

HOMO-2→LUMO + 2

(6.0%)

13

151.55

0.21000

HOMO-3→LUMO

(54.7%)

HOMO-1→LUMO + 4

(32.2%)

14

150.98

0.04050

HOMO-1→LUMO + 4

(50.3%)

HOMO-3→LUMO

(35.8%)

HOMO-1→LUMO + 2

(5.1%)

15

148.64

0.02090

HOMO-2→LUMO + 3

(72.4%)

HOMO-2→LUMO + 4

(10.5%)

16

144.52

0.00880

HOMO-2→LUMO + 4

(69.6%)

HOMO-2→LUMO + 3

(5.6%)

HOMO-1→LUMO + 6

(5.1%)

17

144.43

0.00200

HOMO-3→LUMO + 1

(88.9%)

18

140.57

0.08080

HOMO→LUMO + 6

(39.5%)

HOMO→LUMO + 8

(35.2%)

HOMO→LUMO + 5

(10.6%)

19

139.60

0.05910

HOMO-1→LUMO + 6

(29.8%)

HOMO-1→LUMO + 8

(25.7%)

HOMO-1→LUMO + 5

(7.7%)

HOMO-2→LUMO + 4

(6.8%)

HOMO-2→LUMO + 3

(6.0%)

20

136.70

0.00560

HOMO-2→LUMO + 6

(37.4%)

HOMO-2→LUMO + 8

(27.8%)

HOMO-4→LUMO

(6.3%)

HOMO-3→LUMO + 2

(5.3%)

HOMO-2→LUMO + 5

(5.0%)

  1. aThe oscillator strength (F) is a unitless quantity proportional to the molar absorptivity.