A Phosphorus-Rich Square-Ring Selenophosphate

نویسندگان

  • In Chung
  • Daniel Holmes
  • David P. Weliky
  • Mercouri G. Kanatzidis
چکیده

The new compound Cs10P8Se20 features the heterotetracyclic [P3Se7] 3anion, a phosphorus-rich four-membered-ring species that possesses a P-P-P unit and formally P3þ and P4þ centers. It crystallizes in the orthorhombic space group Pnnm with a = 26.5456(7) Å, b = 8.0254(2) Å, c = 11.9031(4) Å, and Z = 2 at 100(2) K. The cyclic anion is cocrystallized with a [P2Se6] 4anion. Electronic absorption, Raman, Fourier transform infrared, and solid-state P NMR spectroscopy studies of Cs10P8Se20 are reported.

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تاریخ انتشار 2010