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Electro-optical Properties of Neutral and Radical Ion Thienosquaraines

Vito Maltese, Sante Cospito, Amerigo Beneduci, Bruna Clara De Simone, Nino Russo, Giuseppe Chidichimo, René A J Janssen

Chemistry. 2016 Jul 11;22(29):10179-86.

PMID: 27334359

Abstract:

Thienosquaraines are an interesting class of electroactive dyes that are useful for applications in organic electronics. Herein, the redox chemistry and electrochromic response of a few newly synthesized thienosquaraines are presented. These properties are compared to those of the commercial 2,4-bis[4-(N,N-diisobutylamino)-2,6-dihydroxyphenyl]squaraine. The stability of the radical ions formed in electrochemical processes strongly affects these properties, as shown by cyclic voltammetry, in situ spectroelectrochemistry, and quantum chemical calculations. Furthermore, all of the dyes show aggregation tendency resulting in panchromatic absorption covering the whole UV/Vis spectral range.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
LS77399 2,4-Bis[4-(N,N-diisobutylamino)-2,6-dihydroxyphenyl] squaraine 2,4-Bis[4-(N,N-diisobutylamino)-2,6-dihydroxyphenyl] squaraine Price
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