Chiral Luminescent Aza[7]helicenes Functionalized with a Triarylborane Acceptor and Near-Infrared-Emissive Doublet-State Radicals.
Jiaxian DuanYafei ShiFei ZhaoChenglong LiZhihua DuanNiu ZhangPangkuan ChenPublished in: Inorganic chemistry (2023)
This paper presents new chiral luminescent molecules ( N7-BMes2 and N7-TTM ) using configurationally stable aza[7]helicene ( 1 ) as a universal heteroatom-doped chiral scaffold. The respective reactions of electron-donating 1 with a triarylborane acceptor via palladium-catalyzed Buchwald-Hartwig C-N coupling and with the open-shell doublet-state TTM radical via nucleophilic aromatic substitution (S N 2Ar) resulted not only in tunable emissions from blue to the NIR domain but also in significantly enhanced emission quantum efficiency up to Φ = 50%.
Keyphrases
- energy transfer
- quantum dots
- capillary electrophoresis
- light emitting
- ionic liquid
- sensitive detection
- solar cells
- metal organic framework
- minimally invasive
- mass spectrometry
- photodynamic therapy
- molecular dynamics
- fluorescence imaging
- amino acid
- drug release
- fluorescent probe
- drug delivery
- molecularly imprinted
- liquid chromatography
- municipal solid waste