Synthesis, structural and Raman spectroscopic in organic−inorganic halide perovskites based on β-Alanine

Abdellah Kaiba (1) , Mohammed Geesi (2) , Philippe Guionneau (3) , Talal Aljohani (4) , L. Bih (5) , H. Bih (6) , S. Kassou (7)

1 Department of Physics, College of Science and Humanities in Al-Kharj
2 Department of Chemistry
3 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
4 KACST - King Abdulaziz City for Science and Technology [Riyadh]
5 Département Matériaux et Procédés
6 Laboratoire LMSNM
7 Département de Physique

The amino acid copper chlorides [NH3C2H4CO2H]2 CuCl4 is a new member of the family of organic-inorganic hybrid like perovskite system. This compound crystallizes in the monoclinic space group C2/c with unit cell parameters a = 25.1209 (3) Å, b = 7.7432 (2) Å, c = 7.4130 (2) Å, β = 105.293 (2)° and Z = 4. The molecule formula consists of a combination of [CuCl4]2– anions and two twisted organic [NH3(CH2)2CO2H]+ cations to form a two-dimensional perovskite system. Three dimensional hydrogen – bonding network is assuring the cohesion between these layers to stabilize the crystal. The micro-Raman spectroscopy measurement technique is used to probe organic−inorganic halide perovskite vibration modes and to study the effect of laser beam power on the intensity of Raman lines.

Mots clés: Layered perovskite; organic-inorganic hybrid; single crystal structure; Micro-Raman spectroscopy

Domaines: Matériaux

Abdellah Kaiba, Mohammed Geesi, Philippe Guionneau, Talal Aljohani, L. Bih, et al.. Synthesis, structural and Raman spectroscopic in organic−inorganic halide perovskites based on β-Alanine. Journal of Molecular Structure, 2020, 1204, 127380 (7 p.). ⟨10.1016/j.molstruc.2019.127380⟩. ⟨hal-02572100⟩