New 2,2'-bipyridine and 1,10-phenanthroline oxohalide complexes of technetium(VII) and (V)

Abstract

Novel complexes of heptavalent technetium with the formulation TcO/sub 3/XL (L = 2,2'-bipyridine, X = Cl, Br; L = 1,10-phenanthroline, X = Cl) have been prepared and characterized by elemental analysis and optical and vbrational spectroscopy. These complexes can be reduced to the pentavalent species, TcOX/sub 3/L, by heating in ethanolic aqueous HX. TcOX/sub 3/ (2,2'-bipyridine) (X = Cl, Br) can be synthesized independently from n-Bu/sub 4/NTcOX/sub 4/ and 2,2'-bipyridine in ethanolic aqueous HX.