Spectral reflectance studies of some metal chelates in the adsorbed state

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Abstract
Adsorption phenomena of a group of metal chelates of pyridine-2-aldehyde-2-quinolylhydrazone (PAQH) have been investigated. Formulas have been postulated for the chelates on the basis of ultraviolet and visible transmittance and reflectance spectra, ion exchange studies of charges, and chromatographic and temperature behavior. Shifts of spectra with varying adsorbents have been explained on the basis of the electronic polarization theory. Unusual behavior of the chelates has been observed on starch and cellulose and the existence of mixed ligand species due to interaction of adsorbents with the chelates has been suggested.

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