ELMEBROUKI, Keltoum; KHECHOUBI, El Mostafa; KAÏBA, Abdellah; BELAARAJ, Abdesselam; MONDIEIG, Denise; NÉGRIER, Philippe

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http://creativecommons.org/licenses/by-nc/

ELMEBROUKI, Keltoum
Laboratoire de Physique des Matériaux et Modélisation des Systèmes [Meknès] [LP2MS]

KHECHOUBI, El Mostafa
Ecole Supérieur de Technologie [Meknès]

KAÏBA, Abdellah
Laboratoire de Physique des Matériaux et Modélisation des Systèmes [Meknès] [LP2MS]

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Este ítem está publicado en

Journal of Asian Scientific Research. 2013-05-01, vol. 3, n° 5, p. 454-461

AESS Publications

Resumen en inglés

A new perovskite like system [NH3-(CH2)10-NH3] ZnCl4, has been synthesized and characterized by single crystal X-ray diffraction, thermal analysis and infrared spectroscopic study. This compound crystallize in a triclinic space group P-1, with the unit cell parameters a=7.294(1), b=10.058(9) Å, c=12.812(1) Å, α = 90, 89(2), β = 101, 21(1), γ = 92, 40(3) and Z=2. The final R factor is 0,082. The structure of this compound might be described as layered with two parallel anionic and cationic layers. The first layer is composed by isolated distorted tetrahedral (ZnCl4)2- and the second layer of [NH3-(CH2)x-NH3]2+. Network hydrogen - bonding assures the cohesion between these layers and stabilizes the crystal. The structure shows the existence of a conformational disorder of the organic chains between " trans " and " twisted " states. The thermal analysis by DSC shows that the 2C10ZnCl4 perovskite presents reversible phase transition.< Leer menos

Palabras clave en inglés

Perovskite structure

Molecular composite

X-ray diffraction

Crystal structure

phase transitions in layered systems

Orígen

Importado de Hal

Centros de investigación

Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798