TITLE:
Anionic Nanochanneled Silver-Deficient Oxalatochromate(III) Complex with Hydroxonium as Counter Ion: Synthesis, Characterization and Crystal Structure
AUTHORS:
Clémence T. Eboga, Gouet Bebga, Yves A. Mbiangué, Emmanuel N. Nfor, Patrick L. Djonwouo, Michel M. Bélombé, Justin Nenwa
KEYWORDS:
Silver-Deficient Oxalatochromate(III), Water-Filled Nanochannels, Protons, Thermal Analysis, Crystal Structure
JOURNAL NAME:
Open Journal of Inorganic Chemistry,
Vol.7 No.3,
July
18,
2017
ABSTRACT: Reaction of Ba0.50[Ag2Cr(C2O4)3]·5H2O with Ag2SO4 in an aqueous solution of sulfuric acid (pH ≈ 3) yielded the silver(I)/chromium(III) oxalate salt H0.50[Ag2.50Cr(C2O4)3]·5H2O (1). Compound 1 can be best described as an anionic silver-deficient oxalatochromate(III) complex [Ag2.50Cr(C2O4)3]0.5- with nanochannels containing hydrogen-bonded water molecules and protons. Thermal analyses show significant weight losses corresponding to the elimination of water molecules of crystallization followed by the decomposition of the network.