Summary
The doubly bidentate ON-NO donor Schiff base, prepared from salicylaldehyde and 4,4′-diaminodiphenylmethane forms complexes with 1∶1 metal: ligand stoichiometric ratios. The cobalt(II), copper(II) and nickel(II) complexes exhibit subnormal magnetic moments. All the six complexes possess high melting points and are sparingly soluble in common organic solvents. A dinuclear octahedral structure is proposed for the cobalt(II), copper(II), nickel(II) and zinc(II) complexes and a dinuclear tetrahedral configuration is suggested for the cadmium(II) and mercury(II) complexes on the basis of analytical, conductance, magnetic susceptibility, molecular weight, i.r. and electronic spectral data.
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Mahapatra, B.B., Panda, D. Polymetallic complexes: Part VI. Schiff base complexes of cobalt(II), copper(II), nickel(II), zinc(II), cadmium(II) and mercury(II). Transition Met Chem 9, 280–281 (1984). https://doi.org/10.1007/BF00624475
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DOI: https://doi.org/10.1007/BF00624475