Blue, Elizabeth D. Davis, Amelia Conner, David Gunnoe, T. Brent Boyle, Paul D. White, P. S. Synthesis, Solid-State Crystal Structure, and Reactivity of a Monomeric Copper(I) Anilido Complex Synthesis and isolation of the Cu(I) amido complex (dtbpe)Cu(NHPh) (dtbpe = 1,2-bis(di-<i>tert</i>-butylphosphino)ethane) is accomplished upon reaction of [(dtbpe)Cu(μ-Cl)]<sub>2</sub> with LiNHPh. The anilido complex has been fully characterized by IR spectroscopy and multinuclear NMR spectroscopy as well as by single-crystal X-ray diffraction study. Salient features of the solid-state structure include an amido orientation that allows π-interaction of the nitrogen-based lone pair with both the empty copper p-orbital and the π*-system of the phenyl substituent. A solid-state X-ray diffraction study of [(dtbpe)Cu(NH<sub>2</sub>Ph)][BF<sub>4</sub>] has allowed a direct comparison of the structural features upon conversion of the amine ligand to an amido. The reactivity of the amido ligand of (dtbpe)Cu(NHPh) is consistent with nucleophilic character. For example, the formation of Ph<sub>3</sub>CNHPh is observed upon treatment with [Ph<sub>3</sub>C][BF<sub>4</sub>], and reaction at room temperature with EtX (X = Br or I) yields <i>N</i>-ethylaniline. The reactivity of (dtbpe)Cu(NHPh) is compared to that of the octahedral and d<sup>6</sup> complex TpRu(PMe<sub>3</sub>)<sub>2</sub>(NHPh) (Tp = hydridotris(pyrazolyl)borate). Ph 3 CNHPh;phenyl substituent;multinuclear NMR spectroscopy;nucleophilic character;IR spectroscopy;amine ligand;amido orientation;yields N;amido ligand;dtbpe;Salient features;room temperature 2003-07-11
    https://acs.figshare.com/articles/journal_contribution/Synthesis_Solid-State_Crystal_Structure_and_Reactivity_of_a_Monomeric_Copper_I_Anilido_Complex/3651438
10.1021/ja0353659.s003