Crystal structures and characterization of two divalent metal selenates templated by dabco, (C6H14N2)[MII(H2O)6](SeO4)2 (MII: NiII, ZnII) - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Arabian Journal of Chemistry Année : 2017

Crystal structures and characterization of two divalent metal selenates templated by dabco, (C6H14N2)[MII(H2O)6](SeO4)2 (MII: NiII, ZnII)

Résumé

Two new organic-inorganic hybrid materials have been synthesized and crystallographically characterized. Both compounds, (C6H14N2)[Ni(H2O)6](SeO4)2 (I) and (C6H14N2)[Zn(H2O)6](SeO4)2 (II), crystallize isotypically in the monoclinic system, space group P21/c, with the following unit cell parameters: a = 12.4045(3), b = 11.9360(3), c = 12.8366(3) Å, β = 108.518(2)°, V = 1802.18(8) Å3, Z = 4 for compound (I) and a = 12.7839(2), b = 11.9153(4), c = 12.3814(2) Å, β = 108.264(5)°, V = 1790.97(7) Å3, Z = 4 for the zinc related phase. Their supramolecular structure consists of metallic cation octahedrally coordinated by six water molecules [MII(H2O)6]2+, selenate anions (SeO4)2- and dabcodiium cation (C6H14N2)2+ linked together via two types of hydrogen bonds, Ow-H...O and N-H...O only. The thermal decomposition of these supramolecular compounds takes place in several steps leading to the formation of metal oxide. The magnetic measurements show that the nickel based compound is predominantly paramagnetic with weak antiferromagnetic interactions at low temperature.

Domaines

Chimie
Fichier principal
Vignette du fichier
Nkhili - Crystal structures.pdf (1.92 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-00869375 , version 1 (27-06-2018)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Nouha Loulou Nkhili, Walid Rekik, Houcine Naïli, Tahar Mhiri, Thierry Bataille. Crystal structures and characterization of two divalent metal selenates templated by dabco, (C6H14N2)[MII(H2O)6](SeO4)2 (MII: NiII, ZnII). Arabian Journal of Chemistry, 2017, 10 (2), pp.S2509-S2517. ⟨10.1016/j.arabjc.2013.09.019⟩. ⟨hal-00869375⟩
143 Consultations
46 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More