[5]Helicene Based π‐Conjugated Macrocycles with Persistent Figure‐Eight and Möbius Shapes: Efficient Synthesis, Chiral Resolution and Bright Circularly Polarized Luminescence DOI Open Access
Qifeng Zhou, Wei Yuan, Yunfei Li

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Окт. 21, 2024

Abstract π‐Conjugated chiral shape‐persistent molecular nanocarbons hold great potential as chiroptical materials, though their synthesis remains a considerable challenge. Here, we present simple approach using Suzuki coupling of [5]helicene building block with various aromatic units, enabling the one‐pot series macrocycles persistent figure‐eight and Möbius shapes. Single‐crystal structures 7 compounds were solved, 22 enantiomers separated by preparative HPLC. A notable pyrene‐bridged macrocycle, its rigid, fully π‐conjugated overcrowded structure, exhibited pure excimer emission outstanding circularly polarized luminescence (CPL) properties, including large dissymmetric factor (| g lum |=3.8×10 −2 ) significant CPL brightness ( B =710.5 M −1 cm ). This method provides versatile synthetic platform for producing D 2 ‐symmetric singly or triply twisted C 3 symmetry, offering tunable properties applications.

Язык: Английский

Hierarchical Chiral Luminescent Macrocyclic Porous Organic Polymer from Chiral π-Conjugated Macrocycles: Tunable Circularly Polarized Luminescence and Enantiomeric Fluorescent Sensing DOI
Shiwei Fu, Yifan Li,

Junhao Liang

и другие.

Macromolecules, Год журнала: 2025, Номер unknown

Опубликована: Июнь 3, 2025

Язык: Английский

Процитировано

0
[5]Helicene Based π‐Conjugated Macrocycles with Persistent Figure‐Eight and Möbius Shapes: Efficient Synthesis, Chiral Resolution and Bright Circularly Polarized Luminescence DOI Open Access
Qifeng Zhou, Wei Yuan, Yunfei Li

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Окт. 21, 2024

π-Conjugated chiral shape-persistent molecular nanocarbons hold great potential as chiroptical materials, though their synthesis remains a considerable challenge. Here, we present simple approach using Suzuki coupling of [5]helicene building block with various aromatic units, enabling the one-pot series macrocycles persistent figure-eight and Möbius shapes. Single-crystal structures 7 compounds were solved, 22 enantiomers separated by preparative HPLC. A notable pyrene-bridged macrocycle, its rigid, fully π-conjugated overcrowded structure, exhibited pure excimer emission outstanding circularly polarized luminescence (CPL) properties, including large dissymmetric factor (|g

Язык: Английский

Процитировано

2
[5]Helicene Based π‐Conjugated Macrocycles with Persistent Figure‐Eight and Möbius Shapes: Efficient Synthesis, Chiral Resolution and Bright Circularly Polarized Luminescence DOI Open Access
Qifeng Zhou, Wei Yuan, Yunfei Li

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Окт. 21, 2024

Abstract π‐Conjugated chiral shape‐persistent molecular nanocarbons hold great potential as chiroptical materials, though their synthesis remains a considerable challenge. Here, we present simple approach using Suzuki coupling of [5]helicene building block with various aromatic units, enabling the one‐pot series macrocycles persistent figure‐eight and Möbius shapes. Single‐crystal structures 7 compounds were solved, 22 enantiomers separated by preparative HPLC. A notable pyrene‐bridged macrocycle, its rigid, fully π‐conjugated overcrowded structure, exhibited pure excimer emission outstanding circularly polarized luminescence (CPL) properties, including large dissymmetric factor (| g lum |=3.8×10 −2 ) significant CPL brightness ( B =710.5 M −1 cm ). This method provides versatile synthetic platform for producing D 2 ‐symmetric singly or triply twisted C 3 symmetry, offering tunable properties applications.

Язык: Английский

Процитировано

0