2 + 1 Tricarbonyl Complexes of Technetium(I) with a Combination of ,-Bidentate Ligands and Ethyl Isocyanoacetate: How Strong Is the Interfering Effect of Chloride Ions on Their Formation?

Technetium(I) 2 + 1 tricarbonyl complexes with a combination of ,-bidentate ligands (2,2'-bipyridine, bipy; 1,10-phenanthroline, phen) and ethyl isocyanoacetate were prepared and characterized by NMR, IR, UV/visible, and luminescence spectroscopies and by high-performance liquid chromatography (HPLC). The crystal structures of [Tc(CO)(bipy)(CNCHCOOEt)](ClO) (in the form of a solvate with 0.5CHCl) and [Tc(CO)(phen)(CNCHCOOEt)](ClO) (in the form of an adduct with an outer-sphere phen molecule) were determined by single-crystal X-ray diffraction.