“…Organometallic Tc(VII) complexes were previously not known and so we focused our attention on CH3TCO3 2, its properties, and when present, its catalytic reactivity. Only a very few Tc(VII) Compounds containing the "TcOa " are known ( Figure 1) and with the exception of 3 all were prepared within the last three years [4,5,6,7], Synthesis of 5 and 6 goes along with the Re analog. We investigated the different behaviour of rhenium and technetium following example of CH3TCO3 with respect to oxidation catalysis and found the differences are not only gradual but fundamental.…”