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Rate of copper extraction and structure of model β-diketones and 4-acyl-5-pyrazolones

  • Solvent Extraction, Liquid Membranes, and Micellar Separations
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Abstract

The rate of copper extraction with individual 4-acyl-5-pyrazolones and the stability of various enolic and keto forms and their monohydrates were studied. The rate of extraction depends mainly upon the structure of substituent at position 4 and falls when the substituent becomes spacy. The effect of the substituent at position 1 is rather low. The enolic form with intramolecular hydrogen bonding is the most stable. It can form hydrates with water molecules without intramolecular hydrogen bond breaking.

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Cierpiszewski, R., Rusińska-Roszak, D., Szymanowski, J. et al. Rate of copper extraction and structure of model β-diketones and 4-acyl-5-pyrazolones. J Radioanal Nucl Chem 228, 71–76 (1998). https://doi.org/10.1007/BF02387302

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  • DOI: https://doi.org/10.1007/BF02387302

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