AIE/ACQ Effects in Two DR/NIR Emitters: A Structural and DFT Comparative Analysis.

Ugo CarusoBarbara PanunziRosita DianaSimona Concilio Lucia SessaRafi ShiklerShiran NabhaAngela TuziStefano Piotto

Published in: Molecules (Basel, Switzerland) (2018)

The effects of aggregation-induced emission (AIE) and of aggregation caused quenching (ACQ) were observed and discussed on two solid materials based on a phenylenevinylene (PV) and a dicyano-PV structure. The brightest emitter in solid films shows a high fluorescence quantum yield in the deep red/near IR (DR/NIR) region (75%). The spectroscopic properties of the two crystalline solids have been described and compared in terms of crystallographic data and time dependent DFT analysis. The influence of the cyano-substituents on AIE/ACQ mechanism activation was discussed.

Keyphrases

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