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@srsignorella@LatinXChem Anyway, 2 is produced almost quantitatively from the reaction of the {RhNO}10 complex 1 with O2. Once isolated, we will try to characterize it by EPR, DRX and try its reaction with C-X bonds, expecting halide abstraction, as previously found for related PCP {RhNO}9 complexes.
@srsignorella@LatinXChem Hi Sandra! Thanks! It is, as long as oxygen and moisture are carefully excluded. We are planning to prepare it independently from the {RhNO}9 complex 1+(dot) and a strong base such as KOtBu or KHMDS, that are usually employed to deprotonate the arm of pyridine-based PNP ligands.
Where do the electrons go: Fe, NO, or Borane? Take a look to find out (https://t.co/wpIZv5WlC9)!
Thanks to the Lehnert group and particularly Hai (@haidong1301) for collaborating on this study.
@MariadelJesusR5@LatinXChem As for the intermediate hydride species, it wasn´t observed in the experiments, the structure is proposed from DFT calculations. Probably that intermediate decomposes quickly in 2 and other unidentified species. Hope it is more clear now, please don´t hesitate to ask me again!
@MariadelJesusR5@LatinXChem Fortunately, there is a large shift in the IR stretching frequency when going from the 4-coordinate to the 5-coordinate one (from 1912 to 1690 cm-1, the both signals appearing in the IR figure). Both especies are in considerable amount in solution.
@MariadelJesusR5@LatinXChem Hello Maria! Nice to here you liked the poster! The equilibrium shown is between the 4-coourdinate complex 1++ (with two OTf- as counteranions) and the 5-coordinate 1+ (with one OTf- as counteranion and the other one as the fifth ligand).
@chalkley_talk@LatinXChem I have been using both CoCp2 and CoCp*2 as reductants for a long time and was not aware of their potential chemical non-innocence. I am now considering this possibility with my RhNO complexes.