Spectroscopic evidence for the direct coordination of the pertechnetate anion to the uranyl cation in [UO2(TcO4)(DPPMO2)2]+.
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.
Sutton
Andrew D
AD
Centre for Radiochemistry Research, Department of Chemistry, The University of Manchester, Manchester M13 9PL, U.K.
John
Gordon H
GH
Sarsfield
Mark J
MJ
Renshaw
Joanna C
JC
May
Iain
I
Martin
Leigh R
LR
Selvage
Andrew J
AJ
Collison
David
D
Helliwell
Madeleine
M
D000838:Anions / Q000138:chemical synthesis / Q000737:chemistry; D002712:Chlorides / Q000737:chemistry; D018360:Crystallography, X-Ray; D008024:Ligands; D008956:Models, Chemical; D015609:Organotechnetium Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D012211:Rhenium / Q000737:chemistry; D013670:Sodium Pertechnetate Tc 99m / Q000031:analogs & derivatives / Q000138:chemical synthesis / Q000737:chemistry*; D017974:Uranium Compounds / Q000138:chemical synthesis / Q000737:chemistry*
D000838:Anions; D002712:Chlorides; D008024:Ligands; D015609:Organotechnetium Compounds; D017974:Uranium Compounds; D012211:Rhenium; D013670:Sodium Pertechnetate Tc 99m; C012597:uranium dioxide