Syntheses and structures of piperazin-1-ium ABr2 (A = Cs or Rb): hybrid solids containing 'curtain wall' layers of face- and edge-sharing ABr6 trigonal prisms

Kirstie A. Rickaby, Alexandra M. Z. Slawin, William T. A. Harrison

Research output: Contribution to journalArticlepeer-review

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Abstract

The isostructural title compounds, poly[piperazin-1-ium [di-μ-bromido-caesium]], {(C4H11N2)[CsBr2]}n, and poly[piperazin-1-ium [di-μ-bromido-rubidium]], {(C4H11N2)[RbBr2]}n, contain singly-protonated piperazin-1-ium cations and unusual ABr6 (A = Cs or Rb) trigonal prisms. The prisms are linked into a distinctive `curtain wall' arrangement propagating in the (010) plane by face and edge sharing. In each case, a network of N—H⋯N, N—H⋯Br and N—H⋯(Br,Br) hydrogen bonds consolidates the structure.
Original languageEnglish
Pages (from-to)1249-1252
Number of pages4
JournalActa Crystallographica Section E
Volume75
Issue number8
Early online date26 Jul 2019
DOIs
Publication statusPublished - Aug 2019

Keywords

  • Crystal structure
  • Hybrid solid
  • Caesium
  • Rubidium
  • Trigonal prism

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