lanthanide complexes

This modeling is performed on an experimental data set of complexes, where the metal ions of these complexes include transition ion metals and lanthanide ion metals. We use these models to develop a series of new thiosemicarbazone and their complexes; simultaneously, the complexes are worked out the stability constants from the novel models.

9p dianmotminh02 03-05-2024 7 2   Download

The synthesis and structures of yttrium(III) complexes containing 2- naphthoyltrifluoroacetone (HTFNB); benzoyltrifluoroacetone (HTFPB) and N,N-dimethylN’-(9-methylanthracenyl)ethylenediamine (AnMe2) ligand are reported. The complexes have been characterized by IR, 1H NMR and single-crystal X-ray diffraction studies. The crystal structure of Y(TFNB)3AnMe2 (C3) and Y(TFPB)3AnMe2 (C4) were determined. X-ray crystallographic analysis demonstrates that in the mononuclear complex C3, C4, the Y3+ ion was coordinated by three TFNB/TFPB ligands and one ancillary ligand AnMe2.

8p koxih_kothogmih5 04-09-2020 29 3   Download

Tetravalent chemistry: Inorganic. This chapter gives an overview on the chemistry of tetravalent lanthanide compounds, especially those of tetravalent cerium. Following a brief Introduction it covers the tetrahalides, dioxides and other lanthanides(IV) salts. Coordination compounds of cerium in the oxidation state +4 include halogeno complexes and complexes of oxo acids, β-diketonates and related Schiff-base complexes as well as porphyrinates and related complexes.

13p duchlpr 01-05-2018 23 0   Download

There is an increasing interest in the use of lanthanides in medicine. However, themechanismof their accumulation in cells isnotwell understood.Lanthanidecations are similar to ferric ions with regard to transferrin binding, suggesting transferrin-receptormediated transport is possible; however, this has not yet been confirmed. In order to clarify this mechanism, we investigated the binding of Yb 3+ to apo-transferrin by UV-Vis spectroscopy and stopped-flow spec-trophotometry, and found that Yb 3+ binds to apotransferrin at the specific iron sites in the presence of bicarbonate. ...

9p tumor12 22-04-2013 35 2   Download