Journal
TETRAHEDRON LETTERS
Volume 58, Issue 19, Pages 1859-1862Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2017.03.089
Keywords
Viologen; Synthesis; Electrochemistry; Conjugated systems; Supramolecular; Reduction potential
Categories
Funding
- Reading Spectroelectrochemistry Laboratory [D14-015]
- EPSRC [EP/G026203/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G026203/1] Funding Source: researchfish
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A library of 18 conjugated, rod-like compounds with either one or two viologen residues were synthesized 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 pK(b) 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. (C) 2017 Elsevier Ltd. All rights reserved.
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