Abstract
The solid acidic chelates formed by the reaction of the tripositive rare earth ions with the protonated ethylenediamine-N.N,N',N' -tetraacetate ligand were studied by means of thermobalance, infrared, and x-ray diffraction measurements. The oven-dried (110 deg for 24 hr) chelates of cerium through samarium were found to be monohydrated. while the remaining members were anhydrous. Infrared studies suggested that the change in hydration number was accompanied by a change in the amino acid ligand from a pentadentate to a hexadentate configuration. Measurements of the acid dissociation constants of these chelates indicated that a corresponding change does not take place in solution. (auth)
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.
