Stoesser G. Complexes of alkylpyridyl derivatized isotrithiondithiolates with salts of transition metals

The object of research: chemical properties of complexes "soft" (Cu(I), Hg(II), Cd(II), Ag(I), Pd(II), Pt(II)) and "hard" (Co(II), Ni(II), Cu(II), Zn(II)) Lewis's acids with dmit based ligands; the molecular and crystals structure of new complexes; mechanisms of something reactions. Methods: elementary analyses, komplexonome-thry, mas-, IR-, UV-vis- spectroscopy, ESI, NMR 1H & 13C, mag-netic susceptibility, conductometry, thermogravymethry, X-ray, DFT. There are syntheses and results of investigations of 4 new ligands and 23 new complexes has been described in work. It is shown, ac-cording to IR-spectroscopy, that ligand 1 can possess both bi-, and tridentate coordination, and isomeric to it ligand 2, behaves as mono- or bidentate; presence of atom of nitrogen in ortho-position in ligands 1 and 3 makes their similar. It has been, by means of X-ray, that new ligands can represent it self as "bridges" ones. Reactions mechanisms of complexes synthesis [CuCl(1)]2 and [ZnCl3(Ph3P-CH2-CH2-2Py)][MeCN] have been clarificated by the help of the ESI method. The conclusion deals with durability of bond M-N in the complexes confirmed by a method of thermogravimetric analysis. The analyses of UV-spectra have been us to draw a conclusion, about weak interaction pyridyl/triazolyl and dmit fragments in new ligands. According to magnetic researches the structure of complexes Co(II) and Ni(II) have been specified; the conclusion about ability of ligands 1 and 2 to form magneto-ordered has been made. Influence of structure ligands on durability of the complexes formed by them have been investigated by means of quantum-chemical calculations. The important conclusion about way coordination of ligands and the most probable structure of complexes in a gas phase have been made. Sphere of use: coordination & Supramolekular chemistry, nanotechnologies