287962-24-7Relevant academic research and scientific papers
Synthesis, reactivity, and structural characterization of dioxovanadium(V) complexes with tridentate schiff base ligand: Vanadium complexes in supramolecular networks
Plass, Winfried,Yozgatli, Hakan-Peter
, p. 65 - 70 (2003)
The synthesis, characterization and crystal structure analysis of the ammonium salt of the dioxovanadium(V) complex NH4[VO2(salhyph)] with the tridentate Schiff base ligand derived from salicylaldehyde and benzoic acid hydrazide (H2salhyph) is reported. NH4[VO2(salhyph)] crystallizes in the monoclinic space group Pn with a = 708.8(2), b = 1444.3(3), c = 717.1(2) pm and β = 101.09(2)°. The vanadium atom of the dioxovanadium(V) moiety has a distorted square-pyramidal coordination geometry. Extensive hydrogen bonding is observed between the ammonium cation and the oxygen atoms coordinated to the vanadium atom yielding to a two-dimensional network, where the complex anions are arranged in a bilayer. Additional crystal packing within the bilayer appears to be controlled mostly by π stacking between the aromatic rings of the ligand. The reactions of NH4[VO2(salhyph)] with several proton acidic compounds including water, methanol, and proton acids lead to neutral monooxovanadium(V) and dioxovanadium(V) complexes ([VO2(Hsalhyph)], [V2O3(salhyph)2] and [VO(OMe)(salhyph)(HOMe)]).
