VX and VG chemical warfare agents bidentate complexation with lanthanide ions.
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 10(5) mol(-1) dm(3).
Human Protection and Performance Division, Defence Science and Technology Organisation, Fishermans Bend, Melbourne, Australia. genevieve.dennison@dsto.defence.gov.au genevieve.dennison@flinders.edu.au.
Genevieve H
GH
Dennison
Mark R
MR
Sambrook
Martin R
MR
Johnston
D002619:Chemical Warfare Agents / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry*; D007477:Ions / Q000737:chemistry; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D049449:Luminescence; D009566:Nitrates / Q000737:chemistry*; D009946:Organothiophosphorus Compounds / Q000737:chemistry*; D010618:Phenanthrolines / Q000737:chemistry*
D002619:Chemical Warfare Agents; D056831:Coordination Complexes; D007477:Ions; D028581:Lanthanoid Series Elements; D009566:Nitrates; D009946:Organothiophosphorus Compounds; D010618:Phenanthrolines; C009680:VX-agent; C025205:1,10-phenanthroline