Rb4Sn5P4Se20: A semimetallic selenophosphate

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

Research output: Contribution to journalArticle

18 Citations (Scopus)


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
Pages (from-to)8834-8838
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number38
Publication statusPublished - Sep 12 2011


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

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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    Chung, I., Biswas, K., Song, J. H., Androulakis, J., Chondroudis, K., Paraskevopoulos, K. M., Freeman, A. J., & Kanatzidis, M. G. (2011). Rb4Sn5P4Se20: A semimetallic selenophosphate. Angewandte Chemie - International Edition, 50(38), 8834-8838. https://doi.org/10.1002/anie.201104050