Publications scientifiques
2006Article de revueanglais
Potassium trans -diaquabis[oxalato(2–)-κ 2 O , O ′]chromate(III) (ouvre dans un nouvel onglet)
Auteurs
Université de Yaoundé I
Michel M. Bélombé
Vérification de la session…
Publications scientifiques
Michel M. Bélombé
Boniface P. T. Fokwa
Richard Dronskowski
Acta Crystallographica Section E Structure Reports Online
The title compound, K[Cr(C2O4)2(H2O)2], was crystallized from an aqueous solution. It is the first member without uncoordinated water molecules of formula Am[M(C2O4)2(H2O)2]·xH2O, where A = monovalent cation, m = 1 or 2, M = metal(II) or metal(III), x ≥ 0. The crystal packing is governed by electrostatic and coordinative interactions, and intermolecular hydrogen bonds help to stabilize the packing. The coordination of the Cr sites is quasi-octahedral, and the K ions are eight-coordinated by O atoms of oxalate ligands, forming strongly distorted square antiprisms.