Syntheses and crystal structures of a new family of hybrid perovskites : C5H14N2·ABr3·0.5H2O (A = K, Rb, Cs)
Date
08/2019Metadata
Show full item recordAbstract
The syntheses and crystal structures of three hybrid perovskites, viz. poly[1-methylpiperizine-1,4-diium [tri-μ-bromido-potassium] hemihydrate], {(C5H14N2)[KBr3]·0.5H2O}n, (I), poly[1-methylpiperizine-1,4-diium [tri-μ-bromido-rubidium] hemihydrate], {(C5H14N2)[RbBr3]·0.5H2O}n, (II), and poly[1-methylpiperizine-1,4-diium [tri-μ-bromido-caesium] hemihydrate], {(C5H14N2)[CsBr3]·0.5H2O}n, (III), are described. These isostructural (space group Amm2) phases contain a three-dimensional, corner-sharing network of distorted ABr6 octahedra (A = K, Rb, Cs) with the same topology as the classical perovskite structure. The doubly protonated C5H14N22+ cations occupy interstices bounded by eight octahedra and the water molecules lie in square sites bounded by four octahedra. N—H⋯Br, N—H⋯(Br,Br), N—H⋯O and O—H⋯Br hydrogen bonds consolidate the structures.
Citation
Ferrandin , S , Slawin , A M Z & Harrison , W T A 2019 , ' Syntheses and crystal structures of a new family of hybrid perovskites : C 5 H 14 N 2 · A Br 3 ·0.5H 2 O ( A = K, Rb, Cs) ' , Acta Crystallographica Section E , vol. 75 , no. 8 , pp. 1243-1248 . https://doi.org/10.1107/S2056989019010338
Publication
Acta Crystallographica Section E
Status
Peer reviewed
ISSN
2056-9890Type
Journal article
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