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Summary The penetration of the phenanthroline ligand into the interlayer space of the Cu-bentonite results in the formation of Cu(Phen)3-bentonite composite. The expansion of the d001 basal spacing of the Cu-Bent from 14.24 to 17.7 Å on intercalation and the colour change indicate the cation immobilized dimeric ligand species’ presence, which are thermally stable up to 315°C. The shift to higher frequency...
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