Mixed-ligand complexes of technetium-III. Synthesis and characterization of [bis(diphenylphosphino)ethane]tetrakis(trimethylphosphite)technetium(I) hexafluorophosphate, [Tc(DPPE)(TMP)4]PF6

Abstract The diamagnetic technetium(I) complex [Tc(DPPE)(TMP) 4 ]PF 6 was prepared from [Tc(N 2 )H(DPPE) 2 ] and characterized by elemental analysis, 1 H- and 99 Tc-NMR spectroscopy and fast atom bombardment mass spectrometry. [Tc(DPPE)(TMP) 4 ]PF 6 is a prototype compound for technetium complexes with mixed phosphine-phosphite coordination spheres.