Physical Chemistry Chemical Physics, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
The substitution position on ( S )-binaphthol derivatives reverses the current-flow rotation during transitions, altering orientation of magnetic dipole moment m ) and reversing sign circularly polarized luminescence (CPL).
Язык: Английский
Science China Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Март 12, 2025
Язык: Английский
Процитировано
0
Angewandte Chemie, Год журнала: 2025, Номер unknown
Опубликована: Янв. 22, 2025
Abstract Circularly polarized luminescence (CPL) and mechanochromic (MCL) have independently made substantial progress in recent years. However, the exploration of MCL solid‐state CPL materials, which holds practical significance, is still its infancy. Herein, we report properties readily accessible chiral pyrenylprolinamides bearing tert ‐butoxycarbonyl (Boc) or 2,2,2‐trichloroethoxycarbonyl (Troc) groups. Enantiopure crystals Boc derivative display a greater wavelength shift than racemic crystals, while Troc exhibit opposite trend. Most notably, enantiopure show CPL. Unlike previous examples, where quenched upon amorphization, robust spectra were observed even amorphous states. By applying excimer chirality rule, have, for first time, acquired insights into excited‐state structures within mechanically generated These findings offer novel design strategy developing paving way future advancements this emerging field.
Язык: Английский
Процитировано
0
Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown
Опубликована: Янв. 22, 2025
Abstract Circularly polarized luminescence (CPL) and mechanochromic (MCL) have independently made substantial progress in recent years. However, the exploration of MCL solid‐state CPL materials, which holds practical significance, is still its infancy. Herein, we report properties readily accessible chiral pyrenylprolinamides bearing tert ‐butoxycarbonyl (Boc) or 2,2,2‐trichloroethoxycarbonyl (Troc) groups. Enantiopure crystals Boc derivative display a greater wavelength shift than racemic crystals, while Troc exhibit opposite trend. Most notably, enantiopure show CPL. Unlike previous examples, where quenched upon amorphization, robust spectra were observed even amorphous states. By applying excimer chirality rule, have, for first time, acquired insights into excited‐state structures within mechanically generated These findings offer novel design strategy developing paving way future advancements this emerging field.
Язык: Английский
Процитировано
0
Advanced Optical Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 17, 2025
Abstract Stimuli‐responsive circularly polarized luminescence (CPL) materials show great promise for dynamic camouflage, information encryption, and smart sensing. However, synthesis complexity limited practical versatility hinder current research. This study demonstrates novel thermochromic CPL microcapsules that contain chiral aggregation‐induced emission luminogens (AIEgens) doped alkane phase change (PCMs). The synthesized AIEgens, characterized by a high photoluminescence quantum yield of 73.3% obvious chiroptical properties, are successfully incorporated into PCMs to form materials. Microencapsulation the AIEgen‐doped effectively addresses concerns leakage corrosion, yielding stable thermally reliable microcapsules. These exhibit across diverse polymeric matrices substrate surfaces, highlighting their adaptability. Leveraging 2 3D encryption systems based on microcapsule‐embedded coatings developed, ensuring high‐level data security. Furthermore, application in automotive camouflage personalized decoration adapts car environmental terrains, improving aesthetics versatility. easy scalable fabrication multifunctionality these hold transformative potential security offering innovative solutions protecting sensitive enhancing vehicle aesthetics.
Язык: Английский
Процитировано
0
Angewandte Chemie International Edition, Год журнала: 2024, Номер 64(1)
Опубликована: Авг. 13, 2024
Aiming at the further extension of application scope traditional molecular muscles, a novel bispyrene-functionalized chiral [c2]daisy chain was designed and synthesized. Taking advantage unique dimeric interlocked structure chain, resultant muscle emits strong circularly polarized luminescence (CPL) attributed to pyrene excimer with high dissymmetry factor (g
Язык: Английский
Процитировано
3
Scientia Sinica Chimica, Год журнала: 2024, Номер 54(8), С. 1233 - 1249
Опубликована: Май 27, 2024
Circularly polarized luminescent (CPL) materials have attracted widespread attention due to their potential applications in various fields such as 3D display, photoelectric devices, chiral sensors, and asymmetric synthesis.Constructing high-performance CPL with tunable handedness direction is essential for fulfilling the practical application demands diverse domains.This review summarizes research progress on achieving chirality inversion of through stimuli, including light, temperature, solvent, pH ions.It further briefly discusses inversion, well remaining challenges future trends this area.
Язык: Английский
Процитировано
0
Angewandte Chemie, Год журнала: 2024, Номер 137(1)
Опубликована: Авг. 13, 2024
Abstract Aiming at the further extension of application scope traditional molecular muscles, a novel bispyrene‐functionalized chiral [c2]daisy chain was designed and synthesized. Taking advantage unique dimeric interlocked structure chain, resultant muscle emits strong circularly polarized luminescence (CPL) attributed to pyrene excimer with high dissymmetry factor ( g lum ) value 0.010. More importantly, along solvent‐ or anion‐ induced motions muscle, precise regulation stacking within its skeleton results in switching towards either “inversed” state sign inversion larger values “down ” maintained handedness smaller values, making it multistate CPL switch. As first example muscle‐based switch, this proof‐of‐concept study not only successfully widens scopes but also provides promising platform for construction smart luminescent materials practical applications.
Язык: Английский
Процитировано
0
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
0
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
Physical Chemistry Chemical Physics, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
The substitution position on ( S )-binaphthol derivatives reverses the current-flow rotation during transitions, altering orientation of magnetic dipole moment m ) and reversing sign circularly polarized luminescence (CPL).
Язык: Английский
Процитировано
0