Synthesis, electrochemical and intramolecular charge-transfer properties of ‘calix[4]arene-acceptor’ diad and triad derivatives |
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| Authors: | Cheng-Chu Zeng |
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| Institution: | Department of Chemistry, Ben-Gurion University of the Negev, PO Box 653, Beer-Sheva 84105, Israel |
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| Abstract: | Calix4]arenes substituted with various acceptor moieties (naphthoquinone (NQ), tetracyanoanthraquinodimethane (TCNAQ)) have been synthesized. In these derivatives the three-dimensional structure of calix4]arene acts as a weak electron donor (D), connected via a linear sigma spacer to one or two electroactive acceptor (A) units. The electrochemical behavior of these derivatives has been studied by cyclic voltammetry. The UV-Vis spectrum of the TCNAQ triad (A-D-A, 13) reveals the presence of a weak intramolecular charge transfer absorption band. |
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| Keywords: | Calix[4]arene-sigma-acceptor Tetracyanoanthraquinodimethane Napthoquinone Intramolecular charge transfer Cyclic voltammetry |
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