Oxidation of the ligand in nitro complexes of ruthenium(III)

New synthetic route to monocarbonyl polypyridyl complexes of ruthenium: their stereochemistry and reactivity

“…Despite the versatility, there are clearly a number of steps involved in the synthetic route. 6,7, 21 In the light of our earlier studies involving carbonyl complexes as precursors in the synthesis of ruthenium() complexes, 13 we wished to investigate the synthetic utility of carbonyl species of the type [Ru(ppp)(pp)(CO)] 2ϩ , on the premise that decarbonylation via oxidation using trimethylamine N-oxide might provide an alternative route to the [Ru(ppp)(pp)X] nϩ species. However, published routes to the carbonyl species are not trivial either.…”

Synthesis of a nitro complex of RuIII(salen): Unexpected aromatic ring nitration by a nitrite salt

“…Characterization of a Ru(III)-nitro complex would be noteworthy because such species are generally unstable and undergo disproportionation to the (nitrosyl)ruthenium(II) and (nitrato)ruthenium(III) complexes [23][24][25][26][27]. Thus, there have been few reported examples of nitro ruthenium(III) complexes, and these did not include structural data [28][29][30].…”

Synthesis, characterization and redox properties of mixed phosphine nitroruthenium(II) complexes. crystal structure of trans-[Ru(NO2)(terpy)-(PMe3)(PPh3)][ClO4]·H2O

“…Meyer and co-workers 24 investigated the electrochemical oxidation of the ci~-[Ru(bipy)~L(NO,)]" (bipy = 2,2'-bipyridine, n = 1, L = NH,, pyridine, pyrazine, MeCN or PPh,; n = 0, L = C1) complexes while Mukaida and co-workers38 investigated the electrochemical and chemical oxidation of the trans-[RuL,(L')(NO,)]" (L = pyridine or methylpyridine, n = 1, L' = H,O; n = 0, L = C1) complexes. Meyer proposed a mechanism for the decomposition of nitroruthenium(u1) species,24 which was subsequently corroborated and expanded upon by Mukaida.…”