Metalloradical Cations and Dications Based on Divinyldiphosphene and Divinyldiarsene Ligands.

ABSTRACT: Metalloradicals are key species in synthesis, catalysis, and bioinorganic chemistry. Herein, two iron radical cation complexes (3-E)GaCl₄ [(3-E)^.+ = [{(IPr)C(Ph)E}₂ Fe(CO)₃ ]^.+ , E = P or As; IPr = C{(NDipp)CH}₂ , Dipp = 2,6-iPr₂ C₆ H₃ ] are reported as crystalline solids. Treatment of the divinyldipnictenes {(IPr)C(Ph)E}₂ (1-E) with Fe₂ (CO)₉ affords [{(IPr)C(Ph)E}₂ Fe(CO)₃ ] (2-E), in which 1-E binds to the Fe atom in an allylic (η³ -EEC_vinyl ) fashion and functions as a 4e donor ligand. Complexes 2-E undergo 1e oxidation with GaCl₃ to yield (3-E)GaCl₄ . Spin density analysis revealed that the

SUBMITTER: Sharma MK 

PROVIDER: S-EPMC8048781 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature