Author(s)

Clémence Eboga Tanke¹, Bridget N. Ndosiri¹, Yves A. Mbiangué², Gouet Bebga^3*, Justin Nenwa¹

¹Inorganic Chemistry Department, Faculty of Science, University of Yaounde 1, Yaounde, Cameroon.
²Chemistry Department, Higher Teacher Training College, University of Maroua, Maroua, Cameroon.
³Chemistry Department, Higher Teacher Training College, University of Yaounde 1, Yaounde, Cameroon.

A novel mixed barium(II)/silver(I)/chromium(III) oxalate salt, Ba_0.5Ag₂[Cr(C₂O₄)₃]·5H₂O (1), with open architecture has been synthesized in water and characterized by elemental analysis, vibrational and electronic spectra, and single crystal X-ray structure determination. Compound 1 crystallizes in a monoclinic space group C2/c, with unit cell parameters a = 18.179(3), b = 14.743(2), c = 12.278(2)Å, β = 113.821(3), V = 3010.34(90) ų, Z = 8. The structure is characterized by a network of anionic [Cr(C₂O₄)₃]^3- units connected through the O atoms of the oxalates to Ba²⁺ and Ag⁺ sites, forming a three-dimensional coordination polymer with one-dimensional isolated nanochannels parallel to the c axis, and encapsulating hydrogen-bonded guest water molecules. The bulk structure is consolidated by O–H···O bridgings within the nanochannels and by coulombic interactions.

Crystal Structure, Chromium(III) Complex, Nanochannels, Coordination Polymer, Guest-Water Molecules

Tanke, C. , Ndosiri, B. , Mbiangué, Y. , Bebga, G. and Nenwa, J. (2016) Synthesis, Characterization and X-Ray Structure of a Ba(II)/Ag(I)/Cr(III)-Oxalate Salt with Water-Filled Nanochannels. American Journal of Analytical Chemistry, 7, 99-106. doi: 10.4236/ajac.2016.71010.