Crystal structure of NH4[La(SO4)2(H2O)]

Acta Crystallographica Section E: Crystallographic Communications

Redjel, Y.K.²  Daran, J.-C.³  Benslimane, M.⁵  Merazig, H.⁶ 

[1] de Constantine 1, 25000 Constantine, Algeria;de Recherche de Chimie de l'Environnement et Molédes Sciences Exactes, DéLaboratoire de Chimie de Coordination, UPR-CNRS 8241, 05 route de Narbonne, 31077 Toulouse Cedex 4;Unitéculaire Structurale, Facultépartement de Chimie, Université

关键词: CRYSTAL STRUCTURE;    HYDROUS TERNARY SULFATES;    HYDROTHERMAL SYNTHESIS;    HYDROGEN BONDING;   

DOI  :  10.1107/S2056989015009457

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The principal building units in the crystal structure of ammonium aqua­bis(sulfato)­lanthanate(III) are slightly distorted SO4 tetra­hedra, LaO9 polyhedra in the form of distorted tricapped trigonal prisms, and NH4+ ions. The La3+ cation is coordinated by eight O atoms from six different sulfate tetra­hedra, two of which are bidentate coordinating and four monodentate, as well as one O atom from a water mol­ecule; each sulfate anion bridges three La3+ cations. These bridging modes result in the formation of a three-dimensional anionic [La(SO4)2(H2O)]− framework that is stabilized by O—H⋯O hydrogen-bonding inter­actions. The disordered ammonium cations are situated in the cavities of this framework and are hydrogen-bonded to six surrounding O atoms.

【 授权许可】

CC BY