Studies on the mechanism of extraction of copper by antiisomer of 2-hydroxy-4(5)-substituted benzophenone oximes

<正> The composition of the coordination compound formed by the anti-isomers of 2-hy-droxy-4(5)-substituted benzophenone oximes with copper was deduced to contain a ligand-metal ratioof 2:1,based on the data of Job's and slope method as well as by the method of saturated extractionand elemental analysis.By the method of UV and IR spectroscopies and molecular weight determination the structuresof the complexes were elucidated.As central ion,copper was linked with phenolic oxygen and oximido-nitrogen by covalent and coordinated bonds respectively.Meanwhile,the oximido hydroxy groupformed stronger interrnolecular hydroxy bond with phenolic oxygen of another ligand molecule.Theresulting molecule seemed to be in planar square configuration.