Spectroscopic evidence for the direct coordination of the pertechnetate anion to the uranyl cation in [UO2(TcO4)(DPPMO2)2]+

Research output: Contribution to journalArticle


  • AD Sutton
  • GH John
  • MJ Sarsfield
  • I May
  • LR Martin
  • AJ Selvage
  • D Collison
  • M Helliwell

Colleges, School and Institutes


We report the synthesis and structural characterization of [UO(2)(ReO(4))(DPPMO(2))(2)][ReO(4)] and [UO(2)(Cl)(DPPMO(2))(2)][Cl] (where DPPMO(2) = bis(diphenylphosphino)methane dioxide). In both complexes, the linear uranyl dication is coordinated to two bidentate DPPMO(2) ligands in the equatorial plane with one coordinated and one non-coordinated anion (either perrhenate or chloride). We have also prepared the pertechnetate analogue, and, through (31)P and (99)Tc NMR, we have shown that the cation, [UO(2)(TcO(4))(DPPMO(2))(2)](+), is stable in solution.


Original languageEnglish
Pages (from-to)5480-5482
Number of pages3
JournalInorganic Chemistry
Publication statusPublished - 6 Sep 2004