Redox-induced 'zipper' action in Rb2Bi4Se7 and Cs2Bi4Se7: Coupling of slabs to a three-dimensional framework through single-crystal to single- crystal conversion

Lykourgos Iordanidis, Mercouri G. Kanatzidis

Research output: Contribution to journalArticle

22 Citations (Scopus)


An unprecedented and remarkable redox transformation occurs in Rb2Bi4Se7 and Cs2Bi4Se7 in the solid state. The process involves the topotactic oxidative coupling of entire rows of Se2-ions to Se22- groups in a cooperative way reminiscent of the closing action of a zipper (see figure). This process happens over all the single crystals. It involves the rapid expulsion of alkali ions from the crystals and results in the daughter compounds RbBi4Se7 and CsBi4Se7 in which the original slabs are stitched into a three-dimensional net.

Original languageEnglish
Pages (from-to)1928-1930
Number of pages3
JournalAngewandte Chemie - International Edition
Issue number11
Publication statusPublished - Jun 2 2000



  • Bismuth
  • Redox chemistry
  • Selenium
  • Solid-state chemistry
  • Topotacticity

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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