Atomically Defined Monocarborane Copper(I) Acetylides with Structural and Luminescence Properties Tuned by Ligand Sterics.
Kang ZhangYunjun ShenXiaoli YangJiyong LiuTao JiangNathaniel FinneyBernhard SpinglerSimon DuttwylerPublished in: Chemistry (Weinheim an der Bergstrasse, Germany) (2019)
The weakly coordinating cluster [CB11 H12 ]- is used as a versatile building block for the preparation of luminescent copper(I) complexes. Treatment of [CB11 H11 -12-C≡CH]- with CuI and ammonia affords {(CB11 H11 -12-C≡C)2 Cu4 (NH3 )3 }n (2). Addition of selected phosphine and pyridine ligands transforms 2 to a range of homometallic products 3-13. All compounds have been characterized by X-ray crystallography, which reveals a surprising variety of structural complexity featuring cores with two to ten Cu+ centers. In the solid state, products 3-13 exhibit room-temperature phosphorescence across the visible spectrum in colors from blue to deep red. Lifetimes at room temperature are in the microsecond regime, and quantum yields of up to Φ=0.99 are observed.
Keyphrases
- room temperature
- solid state
- energy transfer
- ionic liquid
- quantum dots
- metal organic framework
- light emitting
- high resolution
- molecular dynamics
- molecular dynamics simulations
- oxide nanoparticles
- magnetic resonance imaging
- sensitive detection
- molecularly imprinted
- computed tomography
- mass spectrometry
- combination therapy
- replacement therapy
- smoking cessation
- anaerobic digestion