摘要:
A potentially tridentate ligand with an S,N,O donor set, H2L, is formed by the reaction of N-[(diethylaminothiocarbonyl)benzimidoyl chloride with benzoylhydrazine. Reactions of H2L with (NBu4)[MOCl4] complexes (M = Re, Tc) give five-coordinate, neutral oxo complexes of the composition [MOCl(L)].Mixed-ligand complexes of rhenium(V) containing the tridentate L2- ligand and bidentate N,N-dialkyl-N'-benzoylthioureato ligands (R(2)btu(-)) are formed in high yields when (NBu4)[ReOCl4] is treated with mixtures of H2L and HR(2)btu. Another approach to the mixed-ligand products is the reaction of [ReOCl(L)] with an equivalent amount of HR(2)btu. (C) 2009 Elsevier Ltd. All rights reserved.