Amplified Circularly Polarized and X-ray-Excited Luminescence of Easily Separated Chiral Donor–Acceptor Binaphthalene Imides through a Conformation Locking Strategy DOI

Yang Zhang,

Chenyang Zhao, Jingru Chen

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(9), P. 4806 - 4812

Published: April 18, 2024

Here, we report a feasibly prepared chiral donor–acceptor (D–A) binaphthalene imide scaffold with locked conformation, exhibiting significantly improved luminescent performance compared its open conformation species. The C1-symmetrical based on 1,1′-binaphthol (BINOL) backbone could be synthesized the gram scale only silica column chromatography resolution, which gave photoluminescence quantum yield (PLQY) of about 6%. Further configuration rigidification by etherification BINOL series alkane linkers showed enhanced PLQY up to 37% and turned circularly polarized luminescence (CPL). Moreover, photophysical data theoretical calculations revealed that molecular orbital overlap spin–orbital coupling these imides led activation X-ray excited (XEL) property, was successfully applied in an radiography model. This work not provides methodology for synthesizing novel D–A scaffolds but also highlights potential locking strategy achieving multifunction axially π-conjugated molecules.

Language: Английский

Efficient Ultraviolet Circularly Polarized Luminescence in Zero‐Dimensional Hybrid Cerium Bromides DOI
Chen Li, Yi Wei, Yan Zhang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(26)

Published: April 18, 2024

Abstract Ultraviolet circularly polarized luminescence (UV‐CPL) with high photon energy shows great potential in light sources and stereoselective photopolymerization. However, developing luminescent materials UV‐CPL performance remains challenging. Here, we report a pair of rare earth Ce 3+ ‐based zero‐dimensional (0D) chiral hybrid metal halides (HMHs), R/S ‐(C 14 H 24 N 2 ) CeBr 7 , which exhibits characteristic UV emissions derived from the 5d–4f transition. The compounds show simultaneously photoluminescent quantum yields (32–39)% large dissymmetry factor (|g lum |) values (1.3–1.5)×10 −2 . Thus, figures merits are calculated to be (4.5–5.8)×10 −3 superior reported emissive materials. Additionally, nearly 91 % their PL intensities at 300 K can well preserved 380 (LED operating temperature) without phase transition or decomposition, demonstrating excellent structural optical thermal stabilities Based on these enantiomers, fabricated UV‐emitting CP‐LEDs exhibit polarization degrees ±1.0 %. Notably, generated devices significantly trigger enantioselective photopolymerization diacetylene remarkable stereoselectivity, consequently yield polymerized products anisotropy factors circular dichroism (g CD up ±3.9×10 outperforming other as UV‐polarized sources.

Language: Английский

Citations

2
Machine‐Learning‐Driven G‐Quartet‐Based Circularly Polarized Luminescence Materials DOI Open Access

Yankai Dai,

Zhiwei Zhang, Dong Wang

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(4)

Published: Nov. 21, 2023

Circularly polarized luminescence (CPL) materials have garnered significant interest due to their potential applications in chiral functional devices. Synthesizing CPL with a high dissymmetry factor (g

Language: Английский

Citations

6
Oriented Growth of Highly Emissive Manganese Halide Microrods for Dual‐Mode Low‐Loss Optical Waveguides DOI Creative Commons
Jin‐Feng Liao, Zhipeng Zhang, Gang Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 9, 2024

Abstract Zero‐dimensional (0D) structured lead‐free metal halides have recently attracted widespread attention due to their high photoluminescence quantum yield (PLQY) and negligible self‐absorption, showing enormous potential as optical waveguides towards miniaturized photonic devices. However, the great difficulty in growth of rod‐like nano/micro‐sized morphologies, such applications been less explored. Herein, a new‐type emissive organic–inorganic manganese (II) halide crystal (TPS 2 MnCl 4 , TPS=C 18 H 15 S, triphenylsulfonium) form microrods is synthesized via facile chloride ion (Cl − ) induced oriented method. Due combination attractive features PLQY 86 %, self‐absorption smooth surface, TPS are well suited for use waveguide with an ultra‐low loss coefficient 1.20 ⋅ 10 −4 dB μm −1 superior that most hybrids, organic materials, polymers nanoclusters best our knowledge. Importantly, can further work dual‐mode waveguides, combining active passive light transmission functionalities one single crystal. In addition, also display remarkable performance lighting anti‐counterfeiting distinct properties commendable stability.

Language: Английский

Citations

2
Recent progress on photoactive nonprecious transition-metal complexes DOI
Zhongliang Gong, Hongjie Zhang, Cheng Yan

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 15, 2024

Language: Английский

Citations

2
Amplified Circularly Polarized and X-ray-Excited Luminescence of Easily Separated Chiral Donor–Acceptor Binaphthalene Imides through a Conformation Locking Strategy DOI

Yang Zhang,

Chenyang Zhao, Jingru Chen

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(9), P. 4806 - 4812

Published: April 18, 2024

Here, we report a feasibly prepared chiral donor–acceptor (D–A) binaphthalene imide scaffold with locked conformation, exhibiting significantly improved luminescent performance compared its open conformation species. The C1-symmetrical based on 1,1′-binaphthol (BINOL) backbone could be synthesized the gram scale only silica column chromatography resolution, which gave photoluminescence quantum yield (PLQY) of about 6%. Further configuration rigidification by etherification BINOL series alkane linkers showed enhanced PLQY up to 37% and turned circularly polarized luminescence (CPL). Moreover, photophysical data theoretical calculations revealed that molecular orbital overlap spin–orbital coupling these imides led activation X-ray excited (XEL) property, was successfully applied in an radiography model. This work not provides methodology for synthesizing novel D–A scaffolds but also highlights potential locking strategy achieving multifunction axially π-conjugated molecules.

Language: Английский

Citations

1