Structural Snapshots of π-arene Bonding in a Gold Germylene Cation.

In this study we have accessed the metalogermylenium cation [(PMe 2 Ar Dipp2 )AuGe(Ar Dipp2 )Cl] + ( 4 + ) (Ar Dipp2 = C 6 H 3 -2,6-(C 6 H 3 -2,6- i Pr 2 ) 2 ) that has been structurally characterized with three different non-coordinating counteranions. These studies provide for the first time dynamic information about the conformational rearrangement that characterizes π-arene bonding thorough a series of X-ray diffraction structural snapshots. Computational studies reveal the weak character of the π-arene bonding ( ca . 2 kcal/mol) that can be described as the donation from a π C=C bond toward the empty p valence orbital of germanium.
PMID: 33058332 [PubMed - as supplied by publisher]

Source: Chemistry - October 15, 2020 Category: Chemistry Authors: Bajo S, Alcaide MM, López-Serrano J, Campos J Tags: Chemistry Source Type: research