Photochemically Induced Cyclometalations at Simple Platinum(II) Precursors.

ABSTRACT: Photochemical cycloplatinations of 2-arylpyridines and related C∧N ligands, as well as terdentate heteroaromatic N∧N∧C, N∧C∧N, and N∧C∧C compounds, are demonstrated using (Bu₄N)₂[Pt₂Cl₆] or [PtCl₂(NCPh)₂] as precursors at room temperature. Mono- or bis-cyclometalated Pt(II) complexes with C∧N ligands are obtained depending on excitation wavelength and precursor. Monitoring experiments show that photoexcitation enables both the N-coordination and the subsequent C-H metalation. Photochemical synthetic protocols have been developed, which are advantageous with respect to the established thermal procedures and have allowed the synthesis of the first Pt(II) complexes with N∧C∧C ligands.

SUBMITTER: Poveda D 

PROVIDER: S-EPMC10131227 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature