Turn‐On Fluorescence in Tetra‐NHC Ligands by Rigidification through Metal Complexation: An Alternative to Aggregation‐Induced Emission

• Published in: Angewandte Chemie International Edition Vol. 56; no. 10; pp. 2785 - 2789
• Main Authors: Sinha, Narayan, Stegemann, Linda, Tan, Tristan T. Y., Doltsinis, Nikos L., Strassert, Cristian A., Hahn, F. Ekkehardt
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 01.03.2017
• Edition: International ed. in English
• Subjects: Agglomeration; Complexation; Dilution; Emission; Emissions; Fluorescence; Metals; organometallic complexes; Phosphorescence; poly-NHC ligands; rigidification; Salts; tetraphenylethylene; organometallic complexes; fluorescence; tetraphenylethylene; rigidification; poly-NHC ligands

Two tetraphenylethylene (TPE) bridged tetraimidazolium salts, [H4L‐Et](PF6)4 and [H4L‐Bu](PF6)4, were used as precursors for the synthesis of the dinuclear AgI and AuI tetracarbene complexes [Ag2(L‐Et)](PF6)2, [Ag2(L‐Bu)](PF6)2, [Au2(L‐Et)](PF6)2, and [Au2(L‐Bu)](PF6)2. The tetraimidazolium salts sh...