Synthesis and magnetic properties of the novel binuclear copper(II) metallochelates with unsymmetrical exchange fragment including heterocyclic derivatives

The series of the novel copper(II) binuclear metallochelates with unsymmetrical exchange fragment including pyrazolate bridge has been synthesized for the first time. The composition and structure of the prepared compounds have been established with the data of UR, NMR-H-1, EXAFS spectroscopy as well as magnetochemical studies. The analysis of the influence of pyrazolate ion on the magnetic exchange interaction between two copper atoms has been carried out.