Extended bis‐fused tetrathiafulvalenes incorporating a heteroaromatic π‐electron spacer

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<jats:p><jats:bold>New π‐electron donors are being sought</jats:bold> for the preparation of organic conductors. The first synthesis of bis‐fused π‐electron donors incorporating a heteroaromatic π‐electron spacer (see Figure) is reported. The electrochemical properties of <jats:bold>3a–c</jats:bold> and <jats:bold>4a–c</jats:bold> and the crystal structure of <jats:bold>3c</jats:bold> are presented, the results for the TCNQ complexes <jats:bold>3a</jats:bold> and <jats:bold>4a</jats:bold> confirming that the fusion of two donor units is a suitable strategy for the development of highly conducting molecular complexes. <jats:boxed-text content-type="graphic" position="anchor"><jats:graphic xmlns:xlink="http://www.w3.org/1999/xlink" mimetype="image/gif" position="anchor" specific-use="enlarged-web-image" xlink:href="graphic/must001.gif"><jats:alt-text>magnified image</jats:alt-text></jats:graphic></jats:boxed-text></jats:p>

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