Pertechnetates – A Structural Study Across the Periodic Table
Erik Strub,
Dennis Grödler,
Daniele Zaratti
et al.
Abstract:The number of crystal structures of pertechnetates derived from aqueous solutions has been expanded from seven to over 30. We report the conversion of NH4TcO4 to aqueous HTcO4 via acidic cation exchange. This is followed by the synthesis and structural elucidation of pertechnetate salts of alkaline earth (AE), transition metal (TM) and lanthanoids (Ln) elements. Various degrees of hydration and coordination are discussed. Where possible, a comparison with the perrhenate homologues is made. The described synthe… Show more
“…Zr). 3 We are interested in expanding the library of metal–TcO 4 − /ReO 4 − coordination compounds (along with related solution characterization) to deepen our fundamental knowledge of Tc behaviour in the range of relevant complex matrices.…”
Pertechnetate (99TcVIIO4−) and autoreduced 99Tc(v), species coordinate to UO22+ to form hybrid clusters. These clusters have important implications to understanding technetium chemistry in spent nuclear fuel and legacy wastes.
“…Zr). 3 We are interested in expanding the library of metal–TcO 4 − /ReO 4 − coordination compounds (along with related solution characterization) to deepen our fundamental knowledge of Tc behaviour in the range of relevant complex matrices.…”
Pertechnetate (99TcVIIO4−) and autoreduced 99Tc(v), species coordinate to UO22+ to form hybrid clusters. These clusters have important implications to understanding technetium chemistry in spent nuclear fuel and legacy wastes.
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