Synthesis, crystal structure, vibrational and dielectric properties of di-benzyl-ammonium selenite monohydrate
Abstract The new hybrid compound [C 6 H 5 CH 2 NH 3 ] 2· SeO 3· H 2 O was synthesized and found to crystallize in the triclinic space group P 1 ¯ . This structure can be described as an alternation between organic and inorganic chains connected by two types of N−HO and O−HO hydrogen bonds. The two and antiparallel cations [C 6 H 5 CH 2 NH 3 ] + are arranged in a face-to-face pattern with a distance of 3.911(10)A between them, indicating the existence of π-π interaction. The thermal properties show that the mass losses take place in three steps, which correspond to dehydration and degradation of the title compound. The IR and Raman spectra prove the existence and independence of the organic and inorganic groups as well as a water molecule. The equivalent circuit is modeled by a combination series of two parallel R–CPE circuits. Dielectric studies show that this material is ionic-protonic conductor at low temperature and becomes electronic one at high temperature. Highlights Organic groups with π-π interaction are alternated by mineral groups. The mechanism conduction in this hybrid is ionic-protonic at low temperature. The title compound becomes electronic conductor at high temperature. DSC and TG curves confirm the nature of the decomposition. Graphical abstract Structure description and impedance spectroscopy analysis of [C 6 H 5 CH 2 NH 3 ] 2· SeO 3· H 2 O compound. [DISPLAY OMISSION]
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- DOI : http://dx.doi.org/10.1016/j.solidstatesciences.2016.12.012
- Elsevier : 저널> 권호 > 논문
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