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.
AIE/ACQ effects in two DR/NIR emitters: A structural and DFT comparative analysis / Caruso, Ugo; Panunzi, Barbara; Diana, Rosita; Concilio, Simona; Sessa, Lucia; Shikler, Rafi; Nabha, Shiran; Tuzi, Angela; Piotto, Stefano. - In: MOLECULES. - ISSN 1420-3049. - 23:8(2018), p. 1947. [10.3390/molecules23081947]
AIE/ACQ effects in two DR/NIR emitters: A structural and DFT comparative analysis
Caruso, UgoConceptualization
;Panunzi, Barbara;Diana, Rosita;Tuzi, Angela;
2018
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
