Structural versus electrical properties of an organic-inorganic hybrid material based on sulfate

被引：5
|
作者：
Ben Rached, Asma [1 ]
Guionneau, Philippe [2 ]
Lebraud, Eric [2 ]
Mhiri, Tahar [1 ]
Elaoud, Zakaria [1 ]
机构：
[1] Univ Sfax, Fac Sci Sfax, Lab Phys Chem Solid State, Sfax, Tunisia
[2] Univ Bordeaux, CNRS, ICMCB, 87 Ave Dr A Schweitzer, F-33608 Bordeaux, France
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2017年 / 100卷
关键词：
inorganic-organic compounds; chemical synthesis; X-ray diffraction; crystal structure; dielectric properties; electrical properties; CRYSTAL-STRUCTURE; THERMAL-ANALYSIS; HYDROGEN SULFATE; DIELECTRIC-PROPERTIES; PHASE-TRANSITIONS; RAMAN-SPECTRA; SOL-GEL; IR; CONDUCTIVITY; COMPOUND;
D O I：
10.1016/j.jpcs.2016.09.006
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new organo-sulfate compound is obtained by slow evaporation at room temperature and is characterized by powder and single-crystal X-ray diffraction (XRD) at variable temperatures. The benzylammonium monohydrogenosulfate of formula C6H5CH2NH3+. HSO4-, denoted (BAS), crystallizes in the monoclinic system P2(1)/c space group with the following parameters at room temperature: a= 5.623(5)angstrom, b=20.239(5)degrees angstrom, c=8.188(5)angstrom, beta=94.104(5)degrees. The crystal structure consists of infinite parallel two-dimensional planes built by HSO4- anions and C6H5CH2NH3+ cations interconnected by strong O-H.....O and N-H..... O hydrogen bonds. A phase transition is detected at 350 K by differential scanning calorimetry (DSC) and confirmed by powder XRD. Conductivity measurements using the impedance spectroscopy technique allow to determine the conductivity relaxation parameters associated with the H+ conduction from an analysis of the M"/M"max spectrum measured in a wide temperature range. Transport properties of this material appear to be due to an H+ ion hopping mechanism. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：25 / 32
页数：8
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