Accessing One-Dimensional Chains of Halogenoindates(III) in Organic-Inorganic Hybrids.
Inorg Chem
; 61(14): 5469-5473, 2022 Apr 11.
Article
in En
| MEDLINE
| ID: mdl-35343233
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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Inorg Chem
Year:
2022
Document type:
Article
Affiliation country:
United States