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A 3D metal halide framework in the organic–inorganic compound (H3N(CH2)2SS(CH2)2NH3)3Pb5I16

Abstract :

A novel organic–inorganic hybrid compound, namely (H3N(CH2)2SS(CH2)2NH3)3Pb5I16, was synthesized from the reaction of lead iodide, cystamine chloride, and concentrated hydriodic acid in ethanol under solvothermal condition. According to the results of X-ray single crystal structural analysis, its 3D inorganic framework was constructed from lead iodide octahedra in corner-, edge- or face-sharing mode, which can be considered as connected staircase-like sheets. Disordered cystamine molecules are located both in the cages defined between two consecutive steps of the staircase-like network and in the channels formed by 10 adjacent bridged PbI6 octahedra. The formation and high stability of such a unique 3D metal halide network can be partly attributed to the unusual weak interactions between disulfides and iodides (d(S⋯I) ≈ 3.55 Å) in the structure.Monoclinic, space group: C2/c, a = 35.396(2) Å, b = 8.984(1) Å, c = 22.623(2) Å, β = 120.66(2)°, V = 6188.1(9) Å3, Z = 4.

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https://hal.univ-angers.fr/hal-03343364
Contributeur : Okina Université d'Angers <>
Soumis le : mardi 14 septembre 2021 - 10:29:39
Dernière modification le : mercredi 15 septembre 2021 - 03:27:13

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Nicolas Louvain, Nicolas Mercier. A 3D metal halide framework in the organic–inorganic compound (H3N(CH2)2SS(CH2)2NH3)3Pb5I16. Solid State Sciences, Elsevier, 2008, 10 (10), pp.1269 - 1275. ⟨10.1016/j.solidstatesciences.2007.12.034⟩. ⟨hal-03343364⟩

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