82648-62-2Relevant academic research and scientific papers
Coordination intercalation reactions of the layered compounds VOPO4 and VOAsO4 with pyridine
Johnson, Jack W.,Jacobson, Allan J.,Brody, John F.,Rich, Suzanne M.
, p. 3820 - 3825 (2008/10/08)
Coordination intercalation compounds of the layered mixed oxides VOPO4 and VOAsO4 with pyridine and 4-substituted pyridines have been obtained. With pyridine, the tetragonal phases VOPO4(py) (a = 6.207 (1), c = 9.589 (2) ?) and VOAsO4(py) (a = 6.403 (1), c = 9.661 (1) ?) are formed. The lattice constants and infrared spectra show that pyridine is coordinated to vanadium and is perpendicular to the oxide layers. Little or no reduction of V5+ occurs, and the host layers are preserved on reaction. VOPO4 also reacts with 4-phenylpyridine and 4,4′-bipyridine, although the reactions are slower and the products less crystalline than in the pyridine case.
