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N−H Activation in N-Nitropropionamide: Coordination Chemistry of a Primary Nitroamide

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journal contribution
posted on 04.04.2011, 00:00 by D. Scott Bohle, Zhijie Chua
N-nitropropionamide, EtC(O)NHNO2, oxidatively adds to Ir(Cl)(N2)(PPh3)2 to give a η2-(N,O)-N-nitropropionamide anion bound to an Ir hydride complex. Single-crystal X-ray diffraction of the product indicates that it forms an unusual O-bound chelate through the nitro group. Density functional calculations for a model nickel complex, [Ni(MeC(O)NNO2)(CN)2], are used to help distinguish the observed IR bands for the four possible conformations and binding geometries of this ligand.