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From Cyclic Iminophosphoranes to π-Conjugated Materials


  • Durham University and Sasol Technology UK Ltd. are warmly acknowledged for financial support of this work. We thank Dr. A. M. Kenwright, C. Heffernan, and I. McKeag for assistance with NMR studies, Dr. P. J. Low for access to cyclic voltammetry facilities and Prof. T. B. Marder for invaluable discussions.


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Join here! Phosphenium ion-mediated coupling of an annulated σ4-1λ5-[1,3,2]diazaphosphole (or cyclic iminophosphorane) affords a pseudo-quinoidal dication with extended π-conjugation (see scheme), which emits in the near-infrared (NIR).