Excited state
Wavelengthλ(nm) Experimental
Theoretical
Excitation energy(eV)
Oscillator strength(f)
S1
240.19
267.96
4.6270
0.1442
S2
-
263.03
4.7137
0.0074
S3
-
260.36
4.7620
0.6156
Table 6:
Experimental and Theoretical electronic absorption spectra values of p-Arsanilic acid using TD-DFT/B3LYP/6-31+G
**
.