Cationic Effects on the Net Hydrogen Atom Bond Dissociation Free Energy of High-Valent Manganese Imido Complexes.

ABSTRACT: Local electric fields can alter energy landscapes to impart enhanced reactivity in enzymes and at surfaces. Similar fields can be generated in molecular systems using charged functionalities. Manganese(V) salen nitrido complexes (salen = N,N'-ethylenebis(salicylideneaminato)) appended with a crown ether unit containing Na⁺ (1-Na), K⁺, (1-K), Ba²⁺ (1-Ba), Sr²⁺ (1-Sr), La³⁺ (1-La), or Eu³⁺ (1-Eu) cation were investigated to determine the effect of charge on pK_a, E_1/2, and the net bond dissociation free energy (BDFE) of N-H bonds. The series, which includes the manganese(V) salen nitrido without an appended crown, spans 4 units of charge

SUBMITTER: Leonard NG 

PROVIDER: S-EPMC9118977 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature