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Syntheses and crystal structures of a new family of hybrid perovskites: C5H14N2·ABr3·0.5H2O (A = K, Rb, Cs).

ABSTRACT: The syntheses and crystal structures of three hybrid perovskites, viz. poly[1-methyl-piperizine-1,4-diium [tri-?-bromido-potassium] hemihydrate], {(C5H14N2)[KBr3]·0.5H2O} n , (I), poly[1-methyl-piperizine-1,4-diium [tri-?-bromido-rubidium] hemihydrate], {(C5H14N2)[RbBr3]·0.5H2O} n , (II), and poly[1-methyl-piperizine-1,4-diium [tri-?-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 octa-hedra (A = K, Rb, Cs) with the same topology as the classical perovskite structure. The doubly protonated C5H14N2 2+ cations occupy inter-stices bounded by eight octa-hedra and the water mol-ecules lie in square sites bounded by four octa-hedra. N-H?Br, N-H?(Br,Br), N-H?O and O-H?Br hydrogen bonds consolidate the structures.

SUBMITTER: Ferrandin S 

PROVIDER: S-EPMC6690442 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Syntheses and crystal structures of a new family of hybrid perovskites: C<sub>5</sub>H<sub>14</sub>N<sub>2</sub>·<i>A</i>Br<sub>3</sub>·0.5H<sub>2</sub>O (<i>A</i> = K, Rb, Cs).

Ferrandin Sarah S   Slawin Alexandra M Z AMZ   Harrison William T A WTA  

Acta crystallographica. Section E, Crystallographic communications 20190726 Pt 8

The syntheses and crystal structures of three hybrid perovskites, <i>viz</i>. poly[1-methyl-piperizine-1,4-diium [tri-μ-bromido-potassium] hemihydrate], {(C<sub>5</sub>H<sub>14</sub>N<sub>2</sub>)[KBr<sub>3</sub>]·0.5H<sub>2</sub>O} <sub><i>n</i></sub> , (I), poly[1-methyl-piperizine-1,4-diium [tri-μ-bromido-rubidium] hemihydrate], {(C<sub>5</sub>H<sub>14</sub>N<sub>2</sub>)[RbBr<sub>3</sub>]·0.5H<sub>2</sub>O} <sub><i>n</i></sub> , (II), and poly[1-methyl-piperizine-1,4-diium [tri-μ-bromido-cae  ...[more]

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