Structural Features And Properties of Heteronuclear Germanium(IV) and Some 3d Metal Complexes with Xylaric Acid and 2,2′-Bipyridine

Resumo

New coordination compounds of germanium and 3d metals with xylaric acid (H₅Xylar) and 2,2′-bipyridine (bipy), which contain tetranuclear xylaratogermanate anion [Fe(bipy)₃]₂[(OH)₂Ge₂(μ-HXylar)₄Ge₂(μ- OH)₂]·12Н₂О·2CH₃CN (I) and [Ni(bipy)₃]₂[(OH)₂Ge₂(μ-HXylar)₄Ge₂(μ-OH)₂]·20Н₂О·2C₂H₅OH (II) are synthesized. The complexes are studied by the elemental analysis, thermogravimetry, IR spectroscopy, and X-ray diffraction. To visualize and quantitatively assess hydrogen bonds in I and II the Hiershfeld surface analysis is used.