Table 2. Calculated and Experimental Absorption Values, Transition Energy (ΔE) for the First Excited State (S0 → S1), Largest Oscillator Strength (fo), and % Configuration Interaction (C.I.) for R and M1–M5 at MPW1PW91/6-31G(d,p) in a Chloroform Solvent.
| molecule | calc. λmax (nm) | exp. λmax (nm) | ΔE | fo | transitions | % C.I. | μ (D) |
|---|---|---|---|---|---|---|---|
| R | 716 | 719 | 1.73 | 2.12 | H → L | 69 | 4.99 |
| M1 | 788 | 1.57 | 1.84 | H → L | 69 | 3.14 | |
| M2 | 732 | 1.70 | 2.19 | H → L | 69 | 4.15 | |
| M3 | 775 | 1.60 | 2.06 | H → L | 69 | 3.42 | |
| M4 | 732 | 1.69 | 2.22 | H → L | 69 | 4.58 | |
| M5 | 707 | 1.65 | 2.01 | H → L | 69 | 4.45 |