Vitushkina S. Mixed-ligand complexes of the 3d-metals on the 1,3-dithiole-2-thione-4,5-dithiolate basis

Object of the investigation — mixed-ligand complexes of the 3d-metals on the isotritiondithiolate basis and heterocyclic diamines — 1,10-phenantroline and 2,2'-dipyridyle. Aim of the investigation – reveal structure features and physical properties of mixed-ligand complexes of the 3d-metals on the 1,3-dithiole-2-thione-4,5-dithiolate basis. Methods of the investigation—elemental analysis, chelatometry, IR- and electron spectroscopy, thermogravimetry, X-ray diffraction analysis, Mossbauer effect, magnetic measurements (Faraday method), quantum-chemical computation within the bounds of DFT method. Theoretical and practical results — mixed-ligand complexes of the 3d-metals on the isotritiondithiolate ion basis and heterocyclic diamines have been obtained and their molecular and crystal structures, thermal, spectral and magnetic properties have been research. It is shown, the ability of immediate synthesis of mixed-ligand complexes of the transition metals on the dmit basis. An indirect antiferromagnetic exchange in the Ni(II), Cu(II) и Fe(II) complexes, which is useful for magnetically ordered system, was found. Originality - structures, thermal and magnetic properties of mixed-ligand complexes of the 3d-metals on the dmit basis have been research for the first time and direct method of the synthesis mixed complexes has been suggest. Domain of using— features of the magnetic properties of obtained complexes (formation antiferromagnetic structures at low temperatures) can be used for creation magnetically ordered system.