Observation of the Inverse
Trans Influence (ITI) in
a Uranium(V) Imide Coordination Complex: An Experimental Study and
Theoretical Evaluation
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Abstract
An inverse trans influence has been observed in a high-valent
U(V)
imide complex, [((<sup>Ad</sup>ArO)<sub>3</sub>N)U(NMes)]. A thorough
theoretical evaluation has been employed in order to corroborate the
ITI in this unusual complex. Computations on the target complex, [((<sup>Ad</sup>ArO)<sub>3</sub>N)U(NMes)], and the model complexes [((<sup>Me</sup>ArO)<sub>3</sub>N)U(NMes)] and [(NMe<sub>3</sub>)(OMe<sub>2</sub>)(OMe)<sub>3</sub>U(NPh)] are discussed along with synthetic
details and supporting spectroscopic data. Additionally, the syntheses
and full characterization data of the related U(V) trimethylsilylimide
complex [((<sup>Ad</sup>ArO)<sub>3</sub>N)U(NTMS)] and U(IV) azide
complex [((<sup>Ad</sup>ArO)<sub>3</sub>N)U(N<sub>3</sub>)] are also
presented for comparison