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Prediction of cathodic E1 and E2 values for viologen-containing 1/2 1/2 conjugated unimers and dimers from calculated pKb values of the aromatic substituents

journal contribution
posted on 2023-06-09, 12:01 authored by Long Chen, Franti Hartl, Howard Colquhoun, Barnaby GreenlandBarnaby Greenland
A library of 18 conjugated, rod-like compounds with either one or two viologen residues were synthe- sized and characterized electrochemically. Containing up to 8 aromatic/heterocyclic rings in conjugation, the members of the library differ in the substitution pattern of electron-withdrawing or -donating groups on the aromatic substituents of the viologen units. The first and second half-wave potentials of each member were found to be linearly correlated with the calculated pKb values of the aromatic end-groups. This relationship will enable the half-wave potentials of related, novel, substituted viologen species to be predicted using a simple, empirical formula.

History

Publication status

  • Published

File Version

  • Published version

Journal

Tetrahedron Letters

ISSN

0040-4039

Publisher

Elsevier

Issue

19

Volume

58

Page range

1859-1862

Department affiliated with

  • Chemistry Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2018-02-09

First Compliant Deposit (FCD) Date

2018-02-09

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