Binuclear C^C* Cyclometalated Platinum(II) NHC Complexes with Bridging Amidinate Ligands. Issue 51 (18th November 2016)

• Record Type: Journal Article
• Authors: Leopold, Hendrik; Tenne, Mario; Tronnier, Alexander; Metz, Stefan; Münster, Ingo; Wagenblast, Gerhard; Strassner, Thomas
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 51(2016)
• Page Start: 15779
• Page End: 15782
• Publication Date: 2016-11-18
• Subjects: amidinates -- luminescence -- N-heterocyclic carbenes -- OLEDs -- platinum; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201607075
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Binuclear C^C* cyclometalated NHC platinum(II) compounds with bridging amidinate ligands were synthesized to evaluate their photophysical properties. Their three‐dimensional structures were determined by a combination of 2D NMR experiments, mass spectrometry, DFT calculations, and solid‐state structure analysis. The bridging amidinate ligands enforce short distances between the platinum centers of the two cyclometalated structures, which gives rise to extraordinary photophysical properties. Abstract : Two phosphorescent binuclear C^C* cyclometalated Pt II complexes bridged by N, N ‐diphenylformamidinate ligands were synthesized and characterized by 2D NMR experiments, mass spectrometry, DFT calculations, and solid‐state structure analysis. The bridging amidinate ligands bring the two platinum centers into close proximity, which leads to extraordinary photophysical properties.