ChemInform Abstract: THE COMPLEXATION OF CALCIUM(II) AND LANTHANIDE(III) CATIONS WITH THE PHOSPHATE SUBSTITUTE (CARBOXYMETHOXY)SUCCINATE (CMOS), AS STUDIED BY MAGNETIC RESONANCE SPECTROSCOPY

Autor:	H. Vroon, H. van Bekkum, W.M.M.J. Bovée, C. A. M. Vijverberg, Antonius P.G. Kieboom, J. A. Peters
Rok vydání:	1983
Předmět:	Lanthanide chemistry.chemical_compound Crystallography CMOS chemistry Spin–lattice relaxation chemistry.chemical_element General Medicine Carboxylate Nuclear magnetic resonance spectroscopy Calcium Phosphate Vicinal
Zdroj:	Chemischer Informationsdienst. 14
ISSN:	0009-2975
DOI:	10.1002/chin.198333275
Popis:	The complexation of trisodium (carboxymethoxy)succinate (Na3CMOS) with calcium(II) and with lanthanide(III) cations has been studied using NMR spectroscopy. Structural information has been obtained from lanthanide-induced shifts (LIS), T1 relaxation rate enhancements and vicinal 1H coupling constants. CMOS forms 1:1 and 1:2 complexes in which it mainly acts as a tetradentate ligand via the three carboxylate groups and the ether oxygen. LIS measurements on non-racemic mixtures of Na3CMOS indicate self-association of the Ln(III) complexes at [CMOS]0 > 0.01 M.
Databáze:	OpenAIRE
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