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Title: Decreased overall basicity of a series of new N,N'-bis(carboxymethyl) macrocylcic ether-bis(lactone) ligands derived from EDTA and the ring size effect on the stability constants of their lanthanide complexes

In order to examine the effects of positions of the nitrogen donor atoms and the relative coordination sites of the two carboxylate groups on lanthanide complexation in the study of the characteristics of both open-chain and macrocyclic ligands for the preparation of novel metal-ion selective reagents, a series of N, N'-bis(carboxymethyl)macrocyclic ether-bis(lactone)ligands derived from ethylenediaminetetraacetic acid have been prepared and characterized. The ligand protonation constants and the lanthanide complex formation constants have been determined and are reported here. 14 references, 2 figures, 2 tables.
Authors:
; ;
Publication Date:
OSTI Identifier:
5776306
DOE Contract Number:
FG05-84ER13292
Resource Type:
Journal Article
Resource Relation:
Journal Name: Inorg. Chem.; (United States); Journal Volume: 27:5
Research Org:
Univ. of Texas, El Paso (USA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; HETEROCYCLIC COMPOUNDS; CHEMICAL PREPARATION; ORGANIC NITROGEN COMPOUNDS; POLYETHYLENE GLYCOLS; RARE EARTH COMPLEXES; CHEMICAL REACTION KINETICS; EDTA; EXPERIMENTAL DATA; ALCOHOLS; AMINO ACIDS; CARBOXYLIC ACIDS; CHELATING AGENTS; COMPLEXES; DATA; GLYCOLS; HYDROXY COMPOUNDS; INFORMATION; KINETICS; NUMERICAL DATA; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; POLYMERS; REACTION KINETICS; SYNTHESIS 400201* -- Chemical & Physicochemical Properties