Practical Synthesis and Properties of 2,5-Diarylarsoles
journal contributionposted on 02.10.2015 by Makoto Ishidoshiro, Yoshimasa Matsumura, Hiroaki Imoto, Yasuyuki Irie, Takuji Kato, Seiji Watase, Kimihiro Matsukawa, Shinsuke Inagi, Ikuyoshi Tomita, Kensuke Naka
Any type of content formally published in an academic journal, usually following a peer-review process.
2,5-Diarylarsoles were easily synthesized from nonvolatile arsenic precursors. Diiodoarsine was generated in situ and reacted with titanacyclopentadienes to give 2,5-diarylarsoles. The structures and optical properties were studied in comparison with those of 2,5-diarylphosphole. It was found that the arsoles were much more stable in the air than the phosphole. Single crystal X-ray diffraction revealed the arsenic atoms adopted a trigonal pyramidal structure, reflecting on the s-character of the lone pair. The obtained 2,5-diarylarsoles and 2,5-diarylphosphole showed intense emission in solutions and solid state. In addition, the optical properties were controlled by transition-metal coordination.