Monocapped tris(dioxime) complexes of technetium(III): synthesis and structural characterization of TcX(dioxime)3B-R (X = Cl, Br; dioxime = dimethylglyoxime, cyclohexanedione dioxime; R = CH3, C4H9)

摘要: Monocapped boronic acid adducts of technetium tris(dioxime) complexes (BATO), TcX(dioximeH){sub 2}(dioxime)B-R, where X = Cl or Br, dioxime cyclohexanedione dimethylglyoxime, and R methyl butyl, have been prepared by template synthesis starting with pertechnetate stannous ion, (N(C{sub 4}H{sub 9}){sub 4})(TcOCl{sub 4}), M{sub 2}(TcX{sub 6}) (M NH{sub 4}, K; Cl, Br). These seven-coordinate Tc(III) compounds are the first examples in which one only oxygen each three dioximes is joined to a common cap atom (boron). The crystal structures BATO determined reported. oxygens on uncapped end molecule intramolecularly hydrogen bonded two bridging protons. A halogen occupies seventh coordination site. 34 refs., 4 figs., 8 tabs.