Structural characterization, thermal, vibrational properties and molecular motions in perovskite-type diaminopropanetetrachlorocadmate NH3(CH2)3NH3CdCl4 crystal

被引:32
|
作者
Staskiewicz, B. [1 ]
Turowska-Tyrk, I. [2 ]
Baran, J. [3 ]
Gorecki, Cz. [4 ]
Czapla, Z. [1 ,4 ]
机构
[1] Univ Wroclaw, Inst Expt Phys, PL-50204 Wroclaw, Poland
[2] Wroclaw Univ Technol, Inst Phys & Theoret Chem, PL-50370 Wroclaw, Poland
[3] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland
[4] Opole Univ Technol, Dept Phys, PL-45271 Opole, Poland
关键词
Inorganic compounds; Organic compounds; Infrared spectroscopy; Crystal structure; Phase transitions; PHASE-TRANSITIONS; REORIENTATIONAL MOTIONS; NEUTRON-SCATTERING; ROOM-TEMPERATURE; LAYER COMPOUNDS; (NH3(CH2)3NH3)MNCL4; NH3(CH2)5NH3CDCL4; COMPOUND; SPECTRA; CD(II);
D O I
10.1016/j.jpcs.2014.07.004
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The work presents a detailed analysis of the sequencing of the structural phase transitions in NH3(CH2)(3)NH3CdCl4 crystal by differential scanning calorimetry (DSC), X-ray, infrared, far infrared and Raman spectroscopy. DSC studies have shown that in analyzed crystal occurring one reversible continuous phase transition at 375/374 K (on heating/cooling). Observed in Nujol and Fluorolube mulls in the wide temperature range between 296 K and 413 K spectral changes through the structural phase transition can be attributed to an onset of motion of cations. An assignment of some bands due to internal modes has been also proposed. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1305 / 1317
页数:13
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