Preparation and Characterization of a π-Conjugated Donor-Acceptor System Containing the Strongly Electron-Accepting Tetraphenylborolyl Unit

Chemistry : a European Journal
Michael MeierHolger Braunschweig

Abstract

A novel thiophene-bridged donor-acceptor system was synthesized with a carbazole as donor and a borole as acceptor unit. The borole group was successfully installed via the tin-boron exchange reaction of 1,1-dimethyl-2,3,4,5-tetraphenylstannole with 9-(5-(dibromoboryl)thiophen-2-yl)carbazole. The effect of the borole on the optoelectronic properties of the donor-acceptor system was explored by spectroscopic (UV/Vis and fluorescence spectroscopy), electrochemical (cyclic voltammetry) and theoretical (TD-DFT) methods as well as by modifying its structure. The corresponding donor-acceptor compound bearing the widely employed dimesitylboryl acceptor group was also synthesized for comparison.

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Citations

Apr 23, 2020·Chemical Communications : Chem Comm·Dominic PrieschlHolger Braunschweig
Jan 31, 2020·Chemistry : a European Journal·Florian RauchTodd B Marder
Dec 6, 2019·Frontiers in Chemistry·Jiemin JiaoXuenian Chen
Aug 4, 2019·Journal of the American Society for Mass Spectrometry·Mathias H LindenJürgen H Gross
May 20, 2021·Chemistry : a European Journal·Felix LindlHolger Braunschweig

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