Аннотация:The selective synthesis of coordination compounds type B – is a challenging task. To overcome these problems various synthetic approaches were used, including slow addition of the ligand solution to the solution of the starting nickel complex, an exception to prolonged heating of the reaction mixture or the use of rather exotic metal sources, such as tetrahalonickelate(II) ion in nitromethane.
In this paper, for the stabilization the half -sandwich complexes were applied a tetradentate heteroscorpionate ligand, synthesized by Peterson rearrangement from 8-methoxyquinoline-2-carboxaldexyde and bis(3,5-dimethylpyrazolyl)methanone.
A structural study of the obtained complexes and the study of their catalytic activity in the reaction of ethylene oligomerization are ongoing.