Table 1 Photophysical, electrochemical, and thermal stability properties of CzNI and TPANI

From: Ultra-fast triplet-triplet-annihilation-mediated high-lying reverse intersystem crossing triggered by participation of nπ*-featured excited states

Compd.

τ [ns]a

\({E_{{{{\rm{S}}}}_{1}}}/{E_{{{{\rm{T}}}}_{1}}}/\Delta {E_{{{{\rm{S}}}}_{1}-{{{\rm{T}}}_{1}}}}\) [eV]

\(\Delta{E_{{{{\rm{T}}}}_{2}-{{{\rm{T}}}_{1}}}}\) [eV]

HOMO/LUMO [eV]c

Td/Tm [oC]

Exp.b

Calcd.

Calcd.

CzNI

3.69

2.85/2.11/0.74

2.93/1.81/1.12

1.07

‒5.65/‒3.18

418/295

TPANI

4.89

2.63/2.07/0.56

2.77/1.73/1.04

1.04

‒5.39/‒3.18

365/252

  1. aMeasured in toluene solution under N2.
  2. bSinglet and triplet energy levels were experimentally estimated from the emission onset of fluorescence spectra in toluene (RT) and the highest energy peak of phosphorescence spectra in iodoethane (77 K), respectively.
  3. cHOMO and LUMO energy levels were determined from the onset potential of the oxidation and reduction curves with respect to ferrocene in MeCN.
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