Synthesis, crystal structure, thermal and dielectric properties of tetrapropylammonium tetrabromozincate [N(C3H7)4]2[ZnBr4] compound

The new organic–inorganic compound tetrapropylammonium tetrabromozincate [N(C 3 H 7 ) 4 ] 2 ZnBr 4 has been synthesized and characterized by single-crystal X-ray diffraction, differential scanning calorimetry, IR, Raman and impedance measurements. The crystal structure refinement shows that the [N(C...

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Veröffentlicht in:Applied physics. A, Materials science & processing Materials science & processing, 2016-12, Vol.122 (12), p.1-8, Article 1066
Hauptverfasser: Chkoundali, Souad, Hlel, Faouzi, Khemekhem, Hamadi
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Khemekhem, Hamadi
description The new organic–inorganic compound tetrapropylammonium tetrabromozincate [N(C 3 H 7 ) 4 ] 2 ZnBr 4 has been synthesized and characterized by single-crystal X-ray diffraction, differential scanning calorimetry, IR, Raman and impedance measurements. The crystal structure refinement shows that the [N(C 3 H 7 ) 4 ] 2 ZnBr 4 compound is crystallized in the monoclinic system (space group C 2/c ) with the following unit cell parameters: a  = 33.145(5) Å, b  = 14.234(3) Å, c  = 15.081(2) Å, β  = 110.207(5)° and Z  = 8. The structural arrangement of the title compound can be described as an alternation of organic and inorganic layers along the [100] direction. Differential scanning calorimetry disclosed two order–disorder transition phases located at 340 and 393 K. Besides, an analysis of the dielectric constants ε ′ and ε ″, at several frequencies, shows a distribution of relaxation times. This relaxation is probably due to the reorientational dynamics of alkyl chains.
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A, Materials science &amp; processing</title><addtitle>Appl. Phys. A</addtitle><description>The new organic–inorganic compound tetrapropylammonium tetrabromozincate [N(C 3 H 7 ) 4 ] 2 ZnBr 4 has been synthesized and characterized by single-crystal X-ray diffraction, differential scanning calorimetry, IR, Raman and impedance measurements. The crystal structure refinement shows that the [N(C 3 H 7 ) 4 ] 2 ZnBr 4 compound is crystallized in the monoclinic system (space group C 2/c ) with the following unit cell parameters: a  = 33.145(5) Å, b  = 14.234(3) Å, c  = 15.081(2) Å, β  = 110.207(5)° and Z  = 8. The structural arrangement of the title compound can be described as an alternation of organic and inorganic layers along the [100] direction. Differential scanning calorimetry disclosed two order–disorder transition phases located at 340 and 393 K. Besides, an analysis of the dielectric constants ε ′ and ε ″, at several frequencies, shows a distribution of relaxation times. 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subjects Applied physics
Characterization and Evaluation of Materials
Condensed Matter Physics
Crystal structure
Crystallization
Dielectric properties
Differential scanning calorimetry
Heat measurement
Inorganic compounds
Machines
Manufacturing
Materials science
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Processes
Single crystals
Surfaces and Interfaces
Thin Films
Unit cell
title Synthesis, crystal structure, thermal and dielectric properties of tetrapropylammonium tetrabromozincate [N(C3H7)4]2[ZnBr4] compound
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