Rb4Sn5P4Se20: A semimetallic selenophosphate

In Chung*, Kanishka Biswas, Jung Hwan Song, John Androulakis, Konstantinos Chondroudis, Konstantinos M. Paraskevopoulos, Arthur J Freeman, Mercouri Kanatzidis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Moonlight metal: The valence-precise compound Rb4Sn 5P4Se20 (see picture, Rb blue, Sn green, P black, Se red) is the first metallic selenophosphate. It features a new structure hybrid of "conducting" [Sn5Se8] layers and "insulating" [P2Se6] ligands. It shows the highest electrical conductivity among the chalcophosphates and an extremely low thermal conductivity of 0.44 W m-1 K-1 at room temperature.

Original languageEnglish (US)
Pages (from-to)8834-8838
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number38
StatePublished - Sep 12 2011


  • conducting materials
  • density functional calculations
  • layered compounds
  • selenophosphates
  • thermoelectric properties

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)


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