SYNTHESIS, STRUCTURE, ANTIBACTERIAL ACTIVITY AND TOXICITY OF CO(II) COMPLEX WITH 5-SULFOSALICYLIC ACID.
Keywords:
5-Sulfosalicylic acid, Crystal Structure, Infrared spectroscopy, UV-visible spectroscopy, ligand-to-metal charge transferAbstract
In this investigation, a synthesized octahedral aqua complex of 5-sulfosalicylic acid with Co(II) underwent thorough analysis of its composition and structure through elemental analysis, X-ray crystallography, infrared spectroscopy (FT-IR), and UV-visible spectroscopy. The compound, denoted as [Co(H2O)6][C7H5O3SO3]2·2H2O, features a Co(II) ion arranged octahedrally with six water molecules. The bond lengths between cobalt and oxygen atoms range from 2.062(3) to 2.112(1) Å. The equatorial plane of the octahedron, defined by oxygen atoms O7, O7', O9, and O9' from the water molecules, appears almost perfectly flat with merely a 0.074(1) Å deviation. Some distortion in the octahedral geometry, induced by the Jahn-Teller effect, leads to shorter Co-O8 bonds in contrast to the Co-O7 and Co-O9 bonds.
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