Self-Assembly of Predesigned Trimetallic Macrocycles Based on Benzimidazole as Nonlinear Bridging Motifs: Crystal Structure of a Luminescent Platinum(II) Cyclic Trimer

Angew Chem Int Ed Engl. 1999 Mar 1;38(5):669-671. doi: 10.1002/(SICI)1521-3773(19990301)38:5<669::AID-ANIE669>3.0.CO;2-L.

Abstract

A trimetallic macrocycle: Starting from nonlinear N-deprotonated benzimidazole and square-planar cyclometalated platinum(II) precursors, cyclic trimers with three metal vertices can be obtained by a general and rational strategy (shown schematically, M=Pt). A complex is formed with 2-(2-thienyl)pyridine as chelating ligand which photoluminesces in solution at room temperature.

Keywords: Luminescence; Metallomacrocycles; N ligands; Platinum; Self-assembly.