Platinum Complexes of Tetradentate <i>NCCN</i>-Coordinating Ligands: Structures and Photophysical Properties of Pt^II, Pt₂^III and Pt^IV Compounds.

ABSTRACT: Tetradentate proligands based on biphenyl appended at the 3 and 3' positions with pyridin-2-yl rings (H₂L¹), quinoline-8-yl (H₂L³) heterocycles, or one such pyridine and quinoline (H₂L²), have been synthesized by palladium-catalyzed cross-coupling. These compounds were expected to undergo cyclometalation with K₂PtCl₄ to generate Pt(II) complexes, PtL^1-3, featuring NCCN-coordinated ligands. For H₂L² and H₂L³, the corresponding Pt(IV) compounds PtL^2-3Cl₂ were initially isolated, from which PtL^2-3 could be obtained by reduction with zinc. In contrast, H₂L¹ gave an unusual Pt(III) dimer, Pt

SUBMITTER: Dikova YM 

PROVIDER: S-EPMC12648668 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature