Results 201 to 210 of about 8,327 (239)

Circularly polarized luminescence in chiral silver nanoclusters

Chemical Communications, 2017
Sets of mirror image circular dichroism (CD) and circularly polarized luminescence (CPL) spectra are for the first time demonstrated using enantiomeric dihydrolipoic acid (DHLA)-capped silver nanoclusters.
Jatish Kumar, Tsuyoshi Kawai, Takuya Nakashima   +2 more
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Enhancement of Circularly Polarized Luminescence from Pulsating Nanotubules

Macromolecular Rapid Communications, 2023
AbstractEnhancing the dissymmetry factor (glum) is a crucial issue in developing circularly polarized luminescence (CPL) materials. Herein, based on supramolecular self‐assembly of diethyl l‐glutamate‐cyanodiarylethene (L‐GC) in mixed solution of EtOH‐H2O with different water fraction, enhanced circularly polarized emission from pulsating nanotubules ...
Zijian Gu, Wenyue Ma, Jun Feng, Zhaoyang Liu, Bin Xu, Wenjing Tian   +5 more
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Discriminating Chiral Supramolecular Motions by Circularly Polarized Luminescence

Chemistry – A European Journal, 2022
AbstractMolecular motions are closely associated with the behaviors and properties of organic materials. However, monitoring molecular motions is challenging. Herein, a chiral supramolecular system consisting of L‐/D‐phenylalanine (LPF/DPF) as a chiral inducer and an achiral tetraphenylethene derivative (TPEF) as a molecular rotor has been proposed and
Junfeng Li, Xuelei Peng, Chenxi Hou, Shunan Shi, Jiamian Ma, Qi Qi, Wen‐Yong Lai   +6 more
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Circularly polarized luminescence from pyrene excimers

Tetrahedron Letters, 2019
Abstract Recently, many reports have emerged about circularly polarized luminescence (CPL) based on excimer emission of pyrenes. The intense CPL was observed from various pyrene derivatives such as pyrenes having chiral side chains, chiral oligomers bearing multiple pyrene rings, and pyrenes encapsulated by γ-cyclodextrins.
Yuki Ohishi, Masahiko Inouye
openaire   +1 more source

Circularly Polarized Luminescence from Intramolecular Excimers

2020
In this chapter, examples of circularly polarized luminescence (CPL) stemming from intramolecularly formed excimers will be reviewed. Emission from excimers has peculiar photophysical properties with respect to fluorescence of regular monomers. In addition, if the fluorophoric couple forming the excimer in the excited state is mounted on a chiral ...
Zinna, Francesco, Brun, Elodie, Homberg, Alexandre, Lacour, Jérôme   +3 more
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[7] Circularly polarized luminescence

1978
Publisher Summary This chapter focuses on circularly polarized luminescence. It investigates specifically how it is measured and what it may reveal about the molecules producing it. The occurrence of circularly polarized light in the luminescence of chiral molecules can be rationalized in terms of the known correspondence between absorption and ...
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Photo-Switching of Circularly Polarized Luminescence

2020
Circularly polarized luminescence (CPL) emission from chiral molecular systems is readily switched by means of external stimuli such as temperature, solvent, chemicals, and light irradiation. Since CPL is one of the emission phenomena, it can be modulated in a similar manner to the emission switching.
Takuya Nakashima, Tsuyoshi Kawai
openaire   +1 more source

Circularly Polarized Luminescence Switching in Small Organic Molecules

Chemistry – A European Journal, 2019
AbstractThe circularly polarized luminescence (CPL) switching is of significant interest for applications in security technologies and sensing devices. Small organic molecules (SOMs) show several advantages over metal complexes, supramolecular assemblies, and polymers. Therefore, the recent progress on the CPL switching in SOMs is here reviewed.
Jia‐Liang Ma, Qian Peng, Cui‐Hua Zhao   +2 more
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Azahelicene‐Fused BODIPY Analogues Showing Circularly Polarized Luminescence

Angewandte Chemie International Edition, 2020
AbstractHelical carbazole‐based BODIPY analogues were readily synthesized via aza[7]helicenes. The structures of azahelicene‐incorporated BF2 dyes were elucidated by x‐ray diffraction analysis. DFT calculations revealed that the π‐conjugated system expanded from the helicene moiety to the BODIPY framework.
Chihiro Maeda, Keiji Nagahata, Takuma Shirakawa, Tadashi Ema   +3 more
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Magneto‐Luminescence Thermometry with Magnetic Circularly Polarized Luminescence

Angewandte Chemie International Edition
Abstract Lanthanide(III) materials display remarkable optical properties, making them valuable for advancing remote luminescent sensors. The narrow emission bands and energy‐transfer processes can be tailored to respond to external stimuli, such as temperature changes and magnetic fields.
Diogo Alves Gálico, Muralee Murugesu
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