Synthesis, crystal structure and ⁷¹Ga MAS NMR spectroscopy of a novel gallium phosphatooxalate: [Ga₅(OH)₂(C₁₀H₉N₂)(C₂O₄)(PO₄)₄]·2H₂O

Abstract

The synthesis and characterization of a novel three-dimensional gallium phosphatooxalate is described; the structure consists of GaO₄ tetrahedra and GaO₆ octahedra linked by phosphate and oxalate groups to form two-dimensional sheets between which are GaO₄N square pyramids, generating tunnels in which the monoprotonated 4,4′-bipyridine molecules reside; ⁷¹Ga MAS NMR confirms the presence of four-, five- and six-coordinate Ga atoms.

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