VX and VG chemical warfare agents bidentate complexation with lanthanide ions.

Autor: Dennison, Genevieve H., Sambrook, Mark R., Johnston, Martin R.
Předmět:
Zdroj: Chemical Communications; 2014, Vol. 50 Issue 2, p195-197, 3p
Abstrakt: Investigations into V-agent interaction with 1,10-phenanthroline nitrate Ln(iii) complexes (Eu and Tb) were carried out using luminescence and UV-Vis spectroscopy. Addition of several equivalents of agent resulted in the loss of luminescence intensity and the observation of free 1,10-phenanthroline by UV-Vis. We propose a displacement mechanism in which the V-agent acts as a bidentate ligand to the lanthanide ion. Association constants were determined by luminescence titrations and found to be 105 mol−1 dm3. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index