Circularly Polarized Luminescence from Single Chiral Molecules

2009 ◽  
Author(s):  
Michael D. Barnes ◽  
Ruthanne Hassey-Paradise ◽  
D. Venkataraman
Keyword(s):  
Chiral Molecules ◽  
Circularly Polarized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Novel chiral aggregation induced emission molecules: self-assembly, circularly polarized luminescence and copper(ii) ion detection

2018 ◽  
Vol 2 (10) ◽  
pp. 1884-1892 ◽  
Author(s):  
Guangxi Huang ◽  
Rongsen Wen ◽  
Zhiming Wang ◽  
Bing Shi Li ◽  
Ben Zhong Tang
Keyword(s):  
Self Assembly ◽  
Fluorescent Chemosensor ◽  
Chiral Molecules ◽  
Ion Detection ◽  
Circularly Polarized ◽  
Aggregation Induced Emission ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Two novel chiral molecules 1 and 2 were designed and synthesized. 1 displayed evident CPL activity, whereas 2 served as a highly selective and sensitive “turn-off” fluorescent chemosensor for Cu2+.

Functionalization of Bipyrenol: Potential Precursors for Advanced Chiral Molecules

Synthesis ◽  
2020 ◽  
Vol 52 (22) ◽  
pp. 3452-3460
Author(s):  
Ken-ichi Sugiura ◽  
Umme Aiman Liza
Keyword(s):  
Functional Group ◽  
Chiral Molecules ◽  
High Quantum Yield ◽  
Ambient Conditions ◽  
Circularly Polarized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Properties Of Materials ◽  
Chiral Materials ◽  
Widespread Interest

Considering the widespread interest in the chiroptical properties of materials, especially circularly polarized luminescence (CPL), the functionalization of bipyrenol (BPy) was carried out aiming at future advanced chiral materials (ACMs) in which BPy shows a high quantum yield and clear CPL spectra. To create ACMs using BPy units that contain nucleophilic substituents, amine and thiol were selected as the functional group and attached to BPy by means of alkyl linkages. The obtained thiol and amine derivatives are stable under ambient conditions. To demonstrate the potential of these molecules, photoinduced electron-transfer systems were synthesized.

scholarly journals Generation of Circularly Polarized Luminescence by Symmetry Breaking

Symmetry ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 1786
Author(s):  
Yoshitane Imai
Keyword(s):  
Materials Science ◽  
Chiral Molecules ◽  
Enantiomerically Pure ◽  
Circularly Polarized ◽  
System A ◽  
Organic Luminophores ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Significant Attention ◽  
Photoexcited State

Circularly polarized luminescence (CPL) has attracted significant attention in the fields of chiral photonic science and optoelectronic materials science. In a CPL-emitting system, a chiral luminophore derived from chiral molecules is usually essential. In this review, three non-classical CPL (NC-CPL) systems that do not use enantiomerically pure molecules are reported: (i) supramolecular organic luminophores composed of achiral organic molecules that can emit CPL without the use of any chiral auxiliaries, (ii) achiral or racemic luminophores that can emit magnetic CPL (MCPL) by applying an external magnetic field of 1.6 T, and (iii) circular dichroism-silent organic luminophores that can emit CPL in the photoexcited state as a cryptochiral CPL system.

scholarly journals Boosting the circularly polarized luminescence of small organic molecules via multi-dimensional morphology control

2019 ◽  
Vol 10 (28) ◽  
pp. 6821-6827 ◽  
Author(s):  
Kai Ma ◽  
Wenjie Chen ◽  
Tifeng Jiao ◽  
Xue Jin ◽  
Yutao Sang ◽  
...  
Keyword(s):  
Organic Molecules ◽  
Morphology Control ◽  
Chiral Molecules ◽  
Small Organic Molecules ◽  
Circularly Polarized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

By regulating the composition of solvents, the assembled nanostructures of chiral molecules transformed from 0D nanospheres to 3D nanoflakes, which showed significantly amplified circularly polarized luminescence.

Catalytic Enantioselective Synthesis of Silicon-Stereogenic Alkoxysilanes and Siloxanes

Synlett ◽  
2021 ◽  
Author(s):  
Chuan He ◽  
Jiefeng Zhu
Keyword(s):  
Organic Molecules ◽  
Chemical Space ◽  
Enantioselective Synthesis ◽  
Chiral Molecules ◽  
Small Organic Molecules ◽  
Circularly Polarized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Enantioselective Alcoholysis

A Rh-catalyzed enantioselective intermolecular dehydrogenative Si−O coupling of dihydrosilanes with alocohols and silanols is demonstrated. Rh(I) catalyst equipped with a Josiphos ligand enables the highly enantioselective alcoholysis process of dihydrosilanes, giving access to a variety of functionalized triorgano-substituted silicon-stereogenic alkoxysilanes and siloxanes in decent yields and ee, which significantly expand the chemical space of the silicon-centered chiral molecules. Utility of this methodology is illustrated by the construction of CPL-active (circularly polarized luminescence) chiral alkoxysilane small organic molecules.

Circularly polarized luminescence spectroscopy

1977 ◽  
Vol 77 (6) ◽  
pp. 773-792 ◽  
Author(s):  
Frederick S. Richardson ◽  
James P. Riehl
Keyword(s):  
Luminescence Spectroscopy ◽  
Circularly Polarized ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Blue Circularly Polarized Luminescent Amorphous Molecules with Single-handed Propeller Chirality Induced by Circularly Polarized Light Irradiation

2021 ◽  
Author(s):  
Zhaoming Zhang ◽  
Takunori Harada ◽  
Adriana Pietropaolo ◽  
Yuting Wang ◽  
Yue Wang ◽  
...  
Keyword(s):  
Polarized Light ◽  
Light Irradiation ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Trigonal Symmetry ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Preferred-handed propeller conformation was induced by circularly polarized light irradiation to three amorphous molecules with trigonal symmetry, and the molecules with induced chirality efficiently exhibited blue circularly polarized luminescence. In...

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