Novel Donor–π–Acceptor Compounds Containing 1,3-Dithiol-2-ylidene and Tetracyanobutadiene Units
2004
The title donor-π-acceptor compounds were prepared by the reaction of acetylenes containing a 1,3-dithiol-2-ylidene unit with tetracyanoethylene (TCNE). They showed amphoteric properties and intramolecular charge-transferabsorptions in the visible region. The molecular and crystal structures were revealed by X-ray analysis.
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