Electrochemical and optical properties of molecular triads based on triphenylamine, diketopyrrolopyrrole and boron-dipyrromethene. (10th August 2015)

• Record Type: Journal Article
• Authors: Ruff, Adrian; Heyer, Elodie; Roland, Thomas; Haacke, Stefan; Ziessel, Raymond; Ludwigs, Sabine
• Is Part Of: Electrochimica acta. Volume 173(2015)
• Page Start: 847
• Page End: 859
• Publication Date: 2015-08-10
• Subjects: In-situ spectroelectrochemistry -- Voltammetry -- UV-vis-NIR -- Borondipyrromethene (BODIPY) -- Diketopyrrolopyrrole (DPP) -- Triphenylamines (TPA) -- Molecular triad; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.05.093
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: An in-depth electrochemical and spectroscopic characterization of triphenylamine (TPA ), diketopyrrolopyrrole (DPP ) and BODIPY (BOD ) and triads of the single constituents (triad 1:TPA-DPP-TPA ; triad 2:TPA-DPP-BOD ) has been carried out by means of voltammetric (planar diffusion conditions) and in-situ UV-vis-NIR spectroelectrochemical experiments (thin layer conditions). Both triads show anodic and cathodic electron transfer reactions and clear spectroscopic signatures which can be correlated to those of the neutral and charged single components. While there is a strong electronic interaction betweenTPA andDPP in both triads, an electronic communication with theBOD unit seems to be absent. This is in line with the corresponding energy and charge transfer processes revealed by transient absorption measurements described in our recently published work.