Table 1. Experimentally Determined and B3LYP/6-31+G(d,p)-Calculated 11B Chemical Shift (δ) in Chloroform Using BF3·OEt2 as Reference, and NPA Atomic Charges on the Boron Atom (qB) for the Series of BODIPYs Studied.
BODIPY | boron substituent | 11B δexp (ppm) | 11B δcalc (ppm) | qB (a.u.) |
---|---|---|---|---|
1 | F | 0.69 | 1.21 | 1.294 |
2 | CN | –16.87 | –17.24 | 0.484 |
3 | Me | –0.78 | –2.39 | 0.769 |
4 | Ph | –0.10 | –0.42 | 0.743 |
5 | OMe | 2.57 | 1.39 | 1.222 |