Two tridentate Schiff base ligands and their mononuclear cobalt (III) complexes: Synthesis, characterization, antibacterial and antifungal activities

Synthesis and Characterization of a Cobalt(II) Complex with(E)-Ń-(2-Hydroxy-3-Methoxybenzylidene)Isonicotinohydrazide and (E)-Ń-(2-Hydroxy-3-Methoxybenzylidene)Isonicotinohydrazidanium Nitrate as a By-Product

“…The bond distances Co-N and Co-O in 1 are in accordance with the values from the literature. [8] The bond angles around Co(II) ion are in the range of 177.62 (11) , which lie well within the range of reported values for corresponding bond lengths and angles of other mononuclear cobalt (III) complexes. [9,10] In the solid state, cations, anions, and water molecules are linked through the hydrogen bonds forming a network, as shown in Figure 4.…”

“…The insulin-like action of cobalt compounds has been reported Yang et al [7] Cobalt complexes have also interesting magnetic properties, antibacterial activity, spectroscopic characteristics, and the interaction between the metal and the ligand. [8][9][10] There has been also considerable interest in the chemistry of aroylhydrazone derivatives and their complexes [11,12] and the crystal structure of two Schiff base ligands derived from isonicotinic acid hydrazide has been reported by Yang. [13] In continuation of our work on synthesizing of Schiff base ligand and their complexes, [14][15][16][17][18][19] in this article we report synthesis of a Schiff base ligand derived from the condensation of 3-methoxysalicylaldehyde with isonicotinic acid hydrazide (LH) and its Co complex.…”

Synthesis, crystal structures, electrochemically studies and antibacterial properties of three new mono-nuclear and one very rare bi-nuclear cobalt(III) Schiff base complexes

“…This remarkable diversity of functions is achieved by suitable modification of their basic electronic structure. Cobalt Schiff base complexes are important for their application in the biological fields [13,14]. Some of the previous studies have shown that hexamine cobalt complexes induce DNA condensation [15][16][17].…”

Computational Insights into the Role of the Frontiers Orbital in the Chemistry of Tridentate Ligands

“…Among the various organic ligands that are used in the synthesis ofcoordination compounds, several studies have been developed with tridentate ligands [1][2][3][4][5][6].These ligands coordinate to the metal through three atoms and spectroscopic properties are of interest in various areas ofscience such as molecular magnetic materials, lasers in optical fiber and lu minescent sensors [7][8][9][10][11][12]. Molecular orbitals (MOs) and their properties, like energies and symmetries, are very useful for chemists.…”