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Issue 10, 2018
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Non-symmetrical bis(aminoalkyl)phosphinates: new ligands with enhanced binding of Cu(II) ions

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Abstract

Three novel, non-symmetrical bis(aminoalkyl)phosphinic acids, L1–L3, have been synthesized and characterized. Solution studies on the coordination abilities of the ligands have shown that these compounds form various protonated mono- and bis-complexes, where copper(II) coordination is realized through the nitrogen atom(s) of the amino group(s), supported by oxygen(s) from the phosphinate unit(s). Potentiometric titrations and a full spectroscopic analysis clarified the species distribution profiles and detailed coordination modes. The results show that L1–L3 ligands are efficient chelating agents for Cu(II) ions; their metal binding abilities were compared to structurally related compounds described earlier in the literature.

Graphical abstract: Non-symmetrical bis(aminoalkyl)phosphinates: new ligands with enhanced binding of Cu(ii) ions

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Publication details

The article was received on 06 Mar 2018, accepted on 14 Mar 2018 and first published on 16 Mar 2018


Article type: Paper
DOI: 10.1039/C8NJ01094C
Citation: New J. Chem., 2018,42, 7737-7745
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    Non-symmetrical bis(aminoalkyl)phosphinates: new ligands with enhanced binding of Cu(II) ions

    K. Piasta, A. Dziełak, A. Mucha and E. Gumienna-Kontecka, New J. Chem., 2018, 42, 7737
    DOI: 10.1039/C8NJ01094C

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