Author(s)

Myriam Louati¹, Regaya Ksiksi^1,2, Laurent Jouffret³, Mohamed Faouzi Zid¹

¹University of Tunis El Manar, Faculty of Sciences of Tunis, Laboratory of Materials, Crystal Chemistry and Applied Thermodynamics, Tunis, Tunisia.
²The Higher Institute of Preparatory Studies in Biology and Geology (ISEP-BG) of Soukra, Carthage University, Tunisia, Tunisia.
³Clermont Auvergne University, Clermont-Ferrand, France.

A new decavanadate, (C₄N₂H₇)₄(C₆N₂H₁₀)V₁₀O₂₈·2H₂O, was synthesized by slow evaporation at room temperature and characterized by single crystal X-ray diffraction, IR and UV-Vis spectroscopies. The compound crystallizes in the triclinic system, P-1 space group with the cell parameters: a = 11.200(5) Å, b = 12.056(9) Å, c =20.511(7) Å, α = 73.40(4), β = 84.67(3), γ = 63.51(5), Z = 2 and volume V = 2373.7(1) ų. The formula unit is composed of one decavanadate [V₁₀O₂₈]^6- anion, four 2-methylimidazolium (C₄N₂H₇)⁺ cations, one 2-amino-4-picolinium (C₆N₂H₁₀)²⁺ cation and two water molecules. In the crystal, the layers of decavanadate groups, organic cations and water molecules stack up parallel to the (011) plane. The cohesion is provided by N-H···O, O-H···O hydrogen bonds and Van der Waals interactions leads to a three-dimensional structure. The absorbance spectrum measurement shows an optical band gap of 3.27 eV which allows us to conclude that this compound is a semiconductor material.

Decavanadate, Synthesis, X-Ray Analysis, Crystal Structure, Semiconductor Material

Louati, M. , Ksiksi, R. , Jouffret, L. and Zid, M. (2019) Preparation, Crystal Structure and Spectroscopy Characterization of Vanadium(V) Complex, 2-Amino-4-Picolinium, 2-Methylimidazolium Decavanadate Hydrate (C₄N₂H7)₄(C₆N₂H₁₀)V₁₀O₂₈·2H₂O. Crystal Structure Theory and Applications, 8, 1-11. doi: 10.4236/csta.2019.81001.