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In a crucial last step, all compounds were obtained from the corresponding ynamides, which were particularly suitable for the formation of the TCBDs in the presence of tetracyanoethylene via a [2+2] cycloaddition\/retroelectrocyclization step (CA\u2010RE). Several fluorenyl derivatives in addition to phenanthrenyl and terphenyl ones provided ynamide\u2010based TCBDs affording remarkable emission properties covering a large range of wavelengths. Those compounds emit both in solid state and in solution from the visible region to the NIR range, depending on the molecular structures. Quantum yields in cyclohexane reached unforeseen values for such derivatives, up to 7.8\u2009%. A huge sensitivity to the environment of the TCBDs has also been unraveled for most of the compounds since we observed a dramatic fall of the quantum yields when changing the solvent from cyclohexane to toluene, while they are almost non\u2010emissive in dichloromethane.<\/jats:p>","DOI":"10.1002\/chem.202200025","type":"journal-article","created":{"date-parts":[[2022,2,23]],"date-time":"2022-02-23T06:16:06Z","timestamp":1645596966000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Synthesis and Photophysical Properties of 1,1,4,4\u2010Tetracyanobutadienes Derived from Ynamides Bearing Fluorophores**"],"prefix":"10.1002","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8057-8579","authenticated-orcid":false,"given":"Clotilde","family":"Philippe","sequence":"first","affiliation":[{"name":"Univ Rennes Ecole Nationale Sup\u00e9rieure de Chimie de Rennes CNRS, ISCR \u2013 UMR6226  35000 Rennes 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