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The synthesis and property investigation of π-bridged 9,9′-bifluorenylidene ladder as an electron acceptor

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Abstract

An efficient synthesis method has been described to achieve a new ladder-type conjugated molecule: π-bridged 9,9′-bifluorenylidene dimer (BBF). Theoretical calculations, absorption spectroscopy, electrochemistry, and fluorescence quenching experiments have been employed to reveal that a ladder-type connection of BBF has all 9,9′-bifluorenylidene subunits to contribute to its frontier orbitals, with good electron acceptability. We also demonstrated that such a π-bridged insertion exhibits significant effects on photophysical and electrochemical properties compared with its macrocyclic counterpart.

Graphical abstract: The synthesis and property investigation of π-bridged 9,9′-bifluorenylidene ladder as an electron acceptor

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Article information


Submitted
07 Dec 2019
Accepted
30 Jan 2020
First published
31 Jan 2020

New J. Chem., 2020, Advance Article
Article type
Letter

The synthesis and property investigation of π-bridged 9,9′-bifluorenylidene ladder as an electron acceptor

J. Xu, New J. Chem., 2020, Advance Article , DOI: 10.1039/C9NJ06090A

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