Gusev A. A weak long-range exchange interactions in the copper(II) binuclear complexes of the 2-hydroxyacetophenones acylhydrazones

3. Subject of investigation: the long-range spin-spin exchange interaction aliphatic chain. Object of the investigation: the copper(II) acylhydrazones of the 2-hydroxyacetophenones space-armed dimers. Aim of investigation: The parameters and channel via of the exchange interaction in the cop-per(II) acylhydrazones of the 2-hydroxyacetophenones space-armed dimers. Methods of investigation and instruments: elemental and thermogravimetry analysis, infrared spectroscopy, EPR-spectroscopy, X-ray analyze. Theoretical results and novelty. The long-range spin-spin exchange interaction over aliphatic chain in 34 new complexes were synthesized and investi-gated. In spite of considerable distance between par-amagnetic centers EPR-spectra consists of all signs typical for exchange dimers. The parameter of ex-change interactions as -2J ? 2 or 6 сm-1 was esti-mated. Superexchange mechanism of spin density transferring over aliphatic spacer was proposed.Practical results and novelty. Synthesis new complexes with determinated magnetic properties (molecular paramagnetic with weak antiferromagnet-ism).ield of application. Сhemistry and magnetochem-istry of coordination compounds.