Abstract
Extraction of alkaline-earth cations M2+ in water by lasalocid HA in chloroform results in formation of neutral complex salts MA2. Corresponding reaction constants are obtained. An increase in the selectivity of lasalocid as a function of cation size is observed. A systematic investigation of the structure in chloroform of the species formed with all the alkaline-earth cations is carried out using 1H and 13C NMR spectroscopy. The two anion ligands consistently play a strongly dissymmetric role but significant structure variations are observed according to the cation involved, coordination sites, respective location of the two ligands, and rate of exchange between them. Data on lasalocid–divalent cation interaction processes in water-membranes, either natural or model, are tentatively related to these findings.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
