Das Trihydrochlorid-monohydrat der N-(Pyrid-2-ylmethyl)ethylendiamin-N,N′,N′-triessigsäure und ihr Lanthan(III)-Komplex |
| |
| Authors: | Robert Ruloff Rainer Richter Lothar Beyer |
| |
| Abstract: | The Trihydrochloride Monohydrate of N -(Pyrid-2-ylmethyl)ethylenediamine- N , N′ , N′ -triacetic Acid and its Lanthanum(III) Complex We report the results of the investigation of N-(pyrid-2-ylmethyl)ethylenediamine-N,N′,N′-triacetic acid (H3pedta) and its complexes with rare earth metal ions. The X-ray crystal structures of H3pedta · 3 HCl · H2O and of the lanthanum(III) complex [La(pedta)(H2O)] · 2 H2O were determined. The complex forms a polymer, lanthanum(III) has coordination number 10, one water molecule is coordinated. The water degradation of H3pedta · 3 HCl · H2O and of the complex was investigated by thermoanalysis. Luminescence studies of the corresponding europium(III) complex in aqueous solution show three coordinated water molecules. |
| |
| Keywords: | Polyamino polycarboxylate lanthanum(III)/europium(III) complex crystal structure water coordination |
|
|
