A single solvating benzene molecule decouples the mixed-valence complex through intermolecular orbital interactions.

ABSTRACT: Characterization of covalency of intermolecular interactions in the van der Waals distance limit remains challenging because the interactions between molecules are weak, dynamic, and not measurable. Herein, we approach this issue in a series of supramolecular mixed-valence (MV) donor(D)-bridge(B)-acceptor(A) systems consisting of two bridged Mo₂ units with a C₆H₆ molecule encapsulated, as characterized by the X-ray crystal structures. Comparative analysis of the intervalence charge transfer spectra in benzene and dichloromethane substantiates the strong electronic decoupling effect of the solvating C₆H₆ molecule that breaks down the dielectric solvation theory. Ab initio and DFT calculations unravel that the intermolecular orbit

SUBMITTER: Mallick S 

PROVIDER: S-EPMC9126792 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature