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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
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posted on 2023-06-09, 12:01 authored by Long Chen, Franti Hartl, Howard Colquhoun, Barnaby GreenlandBarnaby GreenlandA 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.
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Publication status
- Published
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- Published version
Journal
Tetrahedron LettersISSN
0040-4039Publisher
ElsevierExternal DOI
Issue
19Volume
58Page range
1859-1862Department affiliated with
- Chemistry Publications
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- No
Peer reviewed?
- Yes
Legacy Posted Date
2018-02-09First Compliant Deposit (FCD) Date
2018-02-09Usage metrics
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