Abstract
Absorption maxima in the 3000 and 1550 cm-/sup 1/ regions in potassium bromide disks, in the 300 m mu region in potassium bromide disks, and in ethanol solutions are reported i for anthranilic acid; its sodium, potassium, calcium, strontium, and barium salts; and its chelates with magnesium, zinc, cadmium, nickel, and copper. Chelation shifts the 320 m mu band of the anthranilate ion to shorter wave lengths, decreases the frequencies of the N - H stretching vibrations, causes an inversion of the relative intensities of the 1615 and 1580 cm-/sup 1/ peaks and effects small shifts to higher frequencies of the band attributed to the antisymmetric COO/sup -/ stretching vibration. The spectra indicates a trans planar square comfiguration for all complexes. The chelates are appreciably dissociated in ethanol. (auth)
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