A supramolecular assembly-based strategy towards the generation and amplification of photon up-conversion and circularly polarized luminescence

Sengupta, Alisha; Roy, Gargee; Likhar, Aakash Ravikant; Asthana, Deepak

doi:10.1039/d3nr04184k

“…[1][2][3][4][5] Supramolecular assembly has been proven to be an efficient strategy for developing such materials because it not only generates precise and high-order structures, enabling control of intra-/intermolecular interactions and tuning of fluorescence properties, but also increases chirality at the molecular level, on the assembly scale (superhelix) and in the bulk state (film, gel), thus inducing chiroptical properties. [6][7][8][9][10] In this respect, Liu and co-workers developed helical microtoroids and constructed a light-harvesting system through hierarchically self-assembly strategy, turning on CPL signals with luminescence dissymmetry factor (g lum ) of 10 À 3 . [10] The g lum value is calculated by 2×(I L À I R )/(I L + I R ), where I L and I R are the intensity of the left-and righthanded circularly polarized emissions, respectively.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Near‐Infrared Circularly Polarized Luminescence Encoded by Transient Supramolecular Chiral Assemblies

Wang,

Xu,

Qi

et al. 2024

Angewandte Chemie

1

0

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Circularly polarized luminescence (CPL) is promising for applications in many fields. However, most systems involving CPL are within the visible range; near‒infrared (NIR) CPL‒active materials, especially those that exhibit high glum values and can be controlled spatially and temporally, are rare. Herein, dynamic NIR‒CPL with a glum value of 2.5[[EQUATION]]10‒2 was achieved through supramolecular coassembly and energy transfer strategies. The chiral assemblies formed by the coassembly between adenosine triphosphate (ATP) and a pyrene derivative exhibit a red CPL signal (glum of 10‒3). The further introduction of sulfo‒cyanine5 resulted in a cooperative energy transfer process, which not only aroused the NIR CPL but also increased the glum value to 10‒2. Temporal control of these chiral assemblies was realized by introducing alkaline phosphatase to fabricate a biomimetic enzyme‒catalyzed network, allowing the dynamic NIR CPL signal to be turned on. Based on these enzyme‐regulated temporally controllable dynamic CPL‐active chiral assemblies, a multilevel information encryption system was further developed. Our work provides a pioneering example for constructing dynamic NIR CPL materials holding the ability to perform temporal control via the supramolecular assembly strategy, which is expected to aid in the design of supramolecular complex systems that more closely resemble natural biological systems.

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“…[1][2][3][4][5] Supramolecular assembly has been proven to be an efficient strategy for developing such materials because it not only generates precise and high-order structures, enabling control of intra-/intermolecular interactions and tuning of fluorescence properties, but also increases chirality at the molecular level, on the assembly scale (superhelix) and in the bulk state (film, gel), thus inducing chiroptical properties. [6][7][8][9][10] In this respect, Liu and co-workers developed helical microtoroids and constructed a light-harvesting system through hierarchically self-assembly strategy, turning on CPL signals with luminescence dissymmetry factor (g lum ) of 10 À 3 . [10] The g lum value is calculated by 2×(I L À I R )/(I L + I R ), where I L and I R are the intensity of the left-and righthanded circularly polarized emissions, respectively.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Near‐Infrared Circularly Polarized Luminescence Encoded by Transient Supramolecular Chiral Assemblies

Wang,

Xu,

Qi

et al. 2024

Angew Chem Int Ed

12

0

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Circularly polarized luminescence (CPL) is promising for applications in many fields. However, most systems involving CPL are within the visible range; near‒infrared (NIR) CPL‒active materials, especially those that exhibit high glum values and can be controlled spatially and temporally, are rare. Herein, dynamic NIR‒CPL with a glum value of 2.5[[EQUATION]]10‒2 was achieved through supramolecular coassembly and energy transfer strategies. The chiral assemblies formed by the coassembly between adenosine triphosphate (ATP) and a pyrene derivative exhibit a red CPL signal (glum of 10‒3). The further introduction of sulfo‒cyanine5 resulted in a cooperative energy transfer process, which not only aroused the NIR CPL but also increased the glum value to 10‒2. Temporal control of these chiral assemblies was realized by introducing alkaline phosphatase to fabricate a biomimetic enzyme‒catalyzed network, allowing the dynamic NIR CPL signal to be turned on. Based on these enzyme‐regulated temporally controllable dynamic CPL‐active chiral assemblies, a multilevel information encryption system was further developed. Our work provides a pioneering example for constructing dynamic NIR CPL materials holding the ability to perform temporal control via the supramolecular assembly strategy, which is expected to aid in the design of supramolecular complex systems that more closely resemble natural biological systems.

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Insight into crystal structure of 2-methylquinolin-1-ium 2-carboxy-3-nitrobenzoate salt: Hirshfeld surface analysis, quantum chemical approach, and anti-bacterial activity

Palanisami,

Chinniagounder,

Venkatachalam

2024

Chem. Pap.

0

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A supramolecular assembly-based strategy towards the generation and amplification of photon up-conversion and circularly polarized luminescence

Abstract: For the molecular properties in which energy transfer/migration is determinantal, such as triplet-triplet annihilation-based photon up-conversion (TTAUC), the overall performance is largely affected by the intermolecular distance and relative molecular...

Cited by 8 publications

References 185 publications

Dynamic Near‐Infrared Circularly Polarized Luminescence Encoded by Transient Supramolecular Chiral Assemblies

Dynamic Near‐Infrared Circularly Polarized Luminescence Encoded by Transient Supramolecular Chiral Assemblies

Dynamic Near‐Infrared Circularly Polarized Luminescence Encoded by Transient Supramolecular Chiral Assemblies

Insight into crystal structure of 2-methylquinolin-1-ium 2-carboxy-3-nitrobenzoate salt: Hirshfeld surface analysis, quantum chemical approach, and anti-bacterial activity

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