Synthesis and catalytic activity of palladium(II) complexes with aromatic o-hydroxynitroso compounds

1,4-Bis(4-nitrosophenyl)piperazine: novel bridging ligand in dinuclear complexes of rhodium(iii) and iridium(iii)

“…In this context it should be mentioned that the presence of two C-nitroso and additional functional neighbors does not guarantee s-N coordination or interaction at both possible positions as shown by the different results published for 2,4-dinitrosoresorcinol, unfortunately without crystallographic data. [43][44][45][46][47] In our attempts dimeric halogenido bridged half-sandwich complexes of Ir(III) (5a-c) and Rh(III) (6a) were employed because these compounds are easily accessible and remarkably robust; they show good solubility in standard organic solvents and their organic p-ligand which is relatively inert towards substitution reactions can be used to fine-tune their chemical properties. These are also the reasons why organometallic half-sandwich complexes have been already extensively examined and reviewed as building blocks in supramolecular chemistry during the last decade.…”