Cobalt(II) and nickel(II) complexes with 1-amino-8-hydroxynaphthalene-2,4-disulfonic acid in condensation reactions with aromatic carbonyl derivatives
摘要:
The condensation reaction of cobalt(II) and nickel(II) complexes with 1-amino-8-hydroxynaphthalene2,4-disulfonic acid and aromatic carbonyl compounds (benzoin and 2-hydroxy-1-naphthaldehyde) was carried out. Four new complexes (I-IV) were synthesized. The compounds were identified by elemental analysis, powder X-ray diffraction, thermogravimetry, magnetic susceptibility, IR and diffuse reflection spectroscopy, and EXAFS. The spatial arrangement of the donor centers of the ligands in the coordination units (tetrahedral for I, octahedral for II and III, and square planar for IV) was determined.