ORGANIC-INORGANIC HYBRID PEROVSKITE (C6H5(CH2)2NH3)2CdCl4: SYNTHESIS, STRUCTURAL AND THERMAL PROPERTIES
S. Kassou1, A. Kaiba2, P. Guionneau3, A. Belaaraj1
1Universite Moulay Ismail, B.P. 11201, Zitoune, 50000 Meknes, Maroc
2Prince Sattam bin Abdulaziz University, P.O. Box 83, Al-Kharj11942, Saudi Arabia
3CNRS, Universite Bordeaux, ICMCB, UPR 9048, F-33600 Pessac, France
Keywords: layered perovskite, organic-inorganic hybrid, structural phase transition, single crystal, differential scanning calorimetry (DSC)
Abstract
The present research work reports the study on crystal structure, vibrational spectroscopy and thermal analysis of organic-inorganic hybrid compound (C6H5(CH2)2NH3)2CdCl4. Single crystals of bis(phenethylammonium)tetrachlorocadmate (C6H5(CH2)2NH3)2CdCl4 (PEA-Cd) were obtained by diffusion at room temperature. This compound crystallizes in the orthorhombic space group C 2 cb with unit cell parameters a = 7.4444(2) Å, b = 38.8965(3) Å, c = 7.3737(2) Å and Z = 4. Single crystal structure has been solved and refined to R = 0.036 and wR = 0.092. The structure consists of an extended [CdCl4]2- network and two [C6H5(CH2)2NH3]+ cations to form a two-dimensional perovskite system. The infrared (IR) spectrum of the title compound was recorded at room temperature. Differential scanning calorimetry (DSC) was used to investigate the phase transition; this compound exhibits a reversible single solid-solid phase transition.
|
