Ethylenediamine tetraacetato trioxomolybdate(VI) and tungstate(VI) and their reactions with hydrogen peroxide
- 化学化工－已发表论文 
Investigation of the reactions between ethylenediamine tetraacetic acid with molybdate(VI) and tungstate(VI) resulted in the isolations of dimeric complexes Na2K2 [Mo2O6 (Edta)] center dot 10H(2)O (1) and Na-4 [W2O6 (Edta)] center dot 8H(2) O (2) (H(4)Edta=ethylenediamine tetraacetic acid) in a wide range of pH values 5-10. The new tungstate complex is resistant for the reaction of hydrogen peroxide, while the reaction of its molybdate homolog results in the isolation of peroxo tetramolybdate(VI) K-8 [Mo4O12 (O-2 )(2)] (3). The three complexes have been characterized by elemental analyses, IR, NMR and X-ray structural analyses. The anions of the complexes 1 and 2 contain two metal atoms and one Edta ligand. Each metal atom is tridentately coordinated by nitrogen and carboxyl groups of Edta ligand, making metal atom six-coordinate.