Neptunium(III) copper(I) diselenide

Daniel M. Wells, S. Skanthakumar, L. Soderholm, James A. Ibers

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


The title compound, NpCuSe2, is the first ternary neptunium transition-metal chalcogenide. It was synthesized from the elements at 873 K in an evacuated fused-silica tube. Single crystals were grown by vapor transport with I2. NpCuSe2 crystallizes in the LaCuS2 structure type and can be viewed as a stacking of layers of CuSe4 tetra-hedra and of double layers of NpSe7 monocapped trigonal prisms along [100]. Because there are no Se - Se bonds in the structure, the formal oxidation states of Np/Cu/Se may be assigned as +III/+I/-II, respectively.

Original languageEnglish (US)
Pages (from-to)i14
JournalActa Crystallographica Section E: Structure Reports Online
Issue number3
StatePublished - 2009

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)


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