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. 2023 Dec 18;2(1):28–39. doi: 10.1021/prechem.3c00097

Table 1. Summary of Optical and Electrochemical Properties of NBN-Doped Helicenes.

sample λabs (nm)a λmaxem (nm)a υa – υf (cm–1)a fwhm (nm)a RMSD (Å)b PLQY (%)a t (ns)a EHOMO (eV)c Egapopt (eV)d ΔEcal-H/L (eV)e
BN-[5]H 447 461 679 25 0.064 45 6.5 –5.41 2.74 3.50
BN-[6]H 456 467 516 23 0.042 55 5.3 –5.43 2.69 3.42
BN-[7]H 460 494 1496 43 0.139 37 5.0 –5.39 2.61 3.35
E[6]H 483 507 980 35 0.106 49 6.0 –5.38 2.51 3.22
E[4]H 496 516 516 28 0.086 47 5.1 –5.43 2.45 3.15
a

Measured in a toluene solution (∼1 × 10–5 M) and determined using the absolute quantum yield method.

b

Calculated at the (TD)B3LYP/6-31G(d) level.

c

Estimated by the onset of the oxidation peaks in dichloromethane and calculated according to EHOMO = −(4.8 + Eonsetox) eV.

d

Estimated by the intersection of absorption and emission band.

e

Calculated at the B3LYP-D3BJ/Def2-TZVP (solvent toluene, PCM model) level.