60.
Via an oxidation reaction of Cu(I) iodide with pyridine-2,6-dicarboxylic acid (H
2L) in DMF three copper(II) complexes, [(CH
3)
2NH
2]
2[CuL
2] (
1), K
2[CuL
2]?H
2L?H
2O (
2) and [Cu(L)(H
2O)]
n (
3), were synthesized and characterized. The structures of
1–3 were determined by single crystal X-ray diffraction studies.
In-situ DMF decomposition produces dimethylamine base under solvothermal conditions and a proton transfer reaction takes place for the complex formation of
1. 3-D networks are stabilized in
1 and
2 via hydrogen bonds. Complex
3 is a 1-D coordination polymer with Cu-O semi-coordination bonds. Thermal decomposition of the complexes results in the corresponding metal oxides. Also, the electrochemical behavior of
1 was determined to be a metal-centered and diffusion-controlled, one-electron reduction process.
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