Organic-inorganic hybrid perovskite (C6H5(CH2)2NH3)2CdCl4: Synthesis, structural and thermal properties

Said Kassou (1) , Abdellah Kaiba (2) , Philippe Guionneau (3) , Abdesselam Belaarj (1)

1 LP2MS - Laboratoire de Physique des Matériaux et Modélisation des Systèmes
2 Physic Department
3 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

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 C2cb 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.

Mots clés: layered perovskite; organic-inorganic hybrid; structural phase transition; single crystal; differential scanning calorimetry (DSC)

Domaines: Matériaux

Said Kassou, Abdellah Kaiba, Philippe Guionneau, Abdesselam Belaarj. Organic-inorganic hybrid perovskite (C6H5(CH2)2NH3)2CdCl4: Synthesis, structural and thermal properties. Journal of Structural Chemistry, 2016, 57 (4), pp.737-743. ⟨10.1134/S0022476616040168⟩. ⟨hal-01395057⟩