Hydrothermal synthesis and structural characterization of bimetallic organic–inorganic hybrid materials: Copper vanadate–1,4-Carboxy-phenylphosphonate phases

The hydrothermal reactions of V2O5, a copper(II) source, 1,4-carboxy-phenylphosphonic acid, a bidentate organonitrogen ligand and HF provided a series of bimetallic organic–inorganic hybrid materials. [Cu(bpy)VO2(O2CC6H4PO3)] (1) is one-dimensional, while [Cu(bpa)VO(OH)(O2CC6H4PO3)] (2) and [Cu(phen)V2O4F(O2CC6H4PO3)] (3) are two-dimensional. In the absence of V2O5, a number of copper-organophosphonates were isolated. Compound 4 [Cu(phen)(H2O)(O2CC6H4PO3H)] is one-dimensional while [Cu3(bpy)2(O2CC6H4PO3)2] (5) is two-dimensional. Molecular structures were observed for [CuF(bpy)(H2O)(HO2CC6H4PO3H)] (6) and [Cu(bpa)(O2CC6H4PO3H)]·3H2O (7·3H2O).

Graphical abstractHydrothermal methods were used to prepare a series of bimetallic organic–inorganic hybrid materials of the general type Cu(II)-organonitrogen ligand/VxOy/1,4-carboxy-phenylphosphonate and of the Cu(II)-organonitrogen ligand/1,4-carboxy-phenylphosphonate classes. The structure of [Cu(phen)V2O4F(O2CC6H4PO3)] is shown.Figure optionsDownload full-size imageDownload as PowerPoint slide