Synthesis of Quinoidal Fused Oligosiloles by Rhodium-Catalyzed Stitching Reaction and Theoretical Investigation of Their Properties.

@article{Shintani2017SynthesisOQ,
  title={Synthesis of Quinoidal Fused Oligosiloles by Rhodium-Catalyzed Stitching Reaction and Theoretical Investigation of Their Properties.},
  author={R. Shintani and N. Misawa and T. Tsuda and R. Iino and Mikiya Fujii and K. Yamashita and K. Nozaki},
  journal={Journal of the American Chemical Society},
  year={2017},
  volume={139 10},
  pages={
          3861-3867
        }
}
New quinoidal fused oligosiloles containing an even number of silole units have been synthesized by a rhodium-catalyzed stitching reaction. Employing [RhCl(tfb)]2 as the catalyst significantly improved the stitching efficiency, and up to six siloles could be fused in quinoidal form. A systematic comparison of the physical properties of Si1-Si6' confirmed the unique trend in their LUMO levels, which become higher with longer π conjugation. To understand the origin of this unusual trend… Expand
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