Accessing One-Dimensional Chains of Halogenoindates(III) in Organic-Inorganic Hybrids

Magdalena Owczarek, Minseong Lee, Vivien Zapf, Wanyi Nie, Ryszard Jakubas

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Organic-inorganic hybrids of halogenoindates(III) are typically represented by one of the zero-dimensional units: InX4-, InX52-, InX63-, or In2X115-. Higher dimensional anionic forms, although not forbidden, have remained almost elusive. Here we report for the first time In3+-based organic-inorganic hybrids, (C4H5N2S)2InCl5 and (C4H5N2S)2InBr5, with 1D anionic chains of trans-halide-bridged InX6 octahedra whose formation is guided by 2-mercaptopyrimidinium cations (C4H5N2S+). The chains are characterized by the significant ease of deformation, which is reflected in the elongation of the bridging bonds or the displacement of In3+ ions. The materials show a robust band gap predominantly governed by C4H5N2S+ cations. Dielectric relaxation processes in (C4H5N2S)2InBr5 arise from the cations' dynamics and suggest the ability of the brominated system to accommodate even larger cations. Our work represents a successful attempt to expand the structural diversity of halogenoindates(III) and opens a pathway to reach multifunctional 1D In3+-based hybrids.

Original languageEnglish
Pages (from-to)5469-5473
Number of pages5
JournalInorganic Chemistry
Volume61
Issue number14
DOIs
StatePublished - Apr 11 2022

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