A chiral π-stacked vinyl polymer emitting white circularly polarized light

Watanabe, K.; Sakamoto, Takeshi; Taguchi, Makoto; Fujiki, Michiya

doi:10.1039/c1cc13711e

Cited by 75 publications

(52 citation statements)

References 33 publications

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“…The attachment of chiral units onto achiral conjugated polymer backbones is another efficient strategy for the design of CPL‐emitting materials . For example, chiral polymers 154 – 159 bearing different binaphthyl units and ratios at the backbone were designed for polarized light emission .…”

Section: Conjugated Polymersmentioning

confidence: 99%

Recent Progress on Circularly Polarized Luminescent Materials for Organic Optoelectronic Devices

Han

Guo

et al. 2018

Advanced Optical Materials

553

346

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Due to the characteristics of optical rotation, selective emission of polarized light, and circular dichroism, circularly polarized luminescent materials have aroused extensive attentions, and they have exhibited wide optoelectronic applications, such as optical data storage, liquid crystal display, and backlights in 3D displays. Here, the research progress of circularly polarized luminescent materials for organic optoelectronic devices is summarized. First, the definition and measurement of the circularly polarized light, such as optical rotatory dispersion, circular dichroism, and circularly polarized luminescence, are systematically introduced. Subsequently, the design strategies for various kinds of circularly polarized luminescent materials, including luminescent lanthanide and transition‐metal complexes, small organic luminophores, conjugated polymers, supramolecules, and liquid crystals are summarized. These materials exhibit circularly polarized luminescence with different magnitudes of luminescence dissymmetry values (glum). They are further applied in optoelectronic devices with excellent performance, and the influence factors on the glum values of these materials are presented in detail. Finally, the current opportunities and challenges in this rapidly growing research field are discussed systematically. The circularly polarized luminescent materials with large glum and high luminescence efficiency are very promising for applications in organic optoelectronic fields.

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Section: Conjugated Polymersmentioning

confidence: 99%

Recent Progress on Circularly Polarized Luminescent Materials for Organic Optoelectronic Devices

Han

Guo

et al. 2018

Advanced Optical Materials

553

346

View full text Add to dashboard Cite

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“…2-4 CPL-emitting polymers extensively studied so far include derivatives of poly(pphenylenevinylene), 5 polyfluorene, 6 poly(p-phenyleneethynylene), 7 polysilane, 8 polythiophene, 9 a hyperbranched fluorenevinylene polymer, 10 poly(dibenzofulvene), 11 and cyclophane-based polymers.…”

Section: Gigantic Chiroptical Enhancements Inmentioning

confidence: 99%

Gigantic chiroptical enhancements in polyfluorene copolymers bearing bulky neomenthyl groups: importance of alternating sequences of chiral and achiral fluorene units

et al. 2014

Self Cite

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“…It is rare that a monodisperse optically active polymer in solution exhibits a clear CPL. 13 Generally, CPL signals of optically active polymers appear in their films or aggregates (representative examples [17][18][19] are listed in the reference and notes section), indicating the chiral orientation of the emitting species. In other words, a higher-ordered structure is essential for an intense CPL.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of optically active through-space conjugated polymers consisting of planar chiral [2.2]paracyclophane and quaterthiophene

Morisaki

Inoshita

Shibata

et al. 2014

Polym J

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INTRODUCTION Some [2.2]paracyclophane compounds 1,2 exhibit planar chirality, a unique feature derived from suppressed rotary motion in the two fixed phenylene units. 2-4 Various [2.2]paracyclophanes have been optically resolved, 3-7 and optically active [2.2] paracyclophane compounds have been used mainly as chiral auxiliaries in the fields of organic and organometallic chemistry. Recently, we studied planar chiral [2.2] paracyclophanes and developed a novel approach to obtain enantiopure 4,12-disubstituted 6 and 4,7,12,15-tetrasubstituted [2.2] paracyclophanes. 8 These molecules were employed as chiral building blocks to construct optically active through-space-conjugated systems in an effort to apply planar chirality in the fields of polymer and materials chemistry. Here, we report the synthesis of optically active through-space-conjugated copolymers consisting of enantiopure 4,12-disubstituted [2.2]paracyclophane and quaterthiophene to expand the substrate scope. In a single polymer chain, 2,2′′′-dixylyl-2,2′:5′,2′′:5′ ′,2′′′-quaterthiophenes are stacked by the [2.2]paracyclophane skeleton. 9,10 In addition to the previously reported optical resolutions by the diastereomer method, 6 chromatographic optical resolutions of key compounds with chiral columns were successfully carried out. The obtained polymers exhibited beneficial chiroptical properties such as circularly polarized luminescence (CPL) with a relatively large CPL dissymmetry factor (g lum ). We disclose herein that the optically active through-space-conjugated polyarylenes, instead of poly(p-aryleneethynylene)s, emit clear CPL due to the planar chiral [2.2] paracyclophane.

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A chiral π-stacked vinyl polymer emitting white circularly polarized light

Cited by 75 publications

References 33 publications

Recent Progress on Circularly Polarized Luminescent Materials for Organic Optoelectronic Devices

Recent Progress on Circularly Polarized Luminescent Materials for Organic Optoelectronic Devices

Gigantic chiroptical enhancements in polyfluorene copolymers bearing bulky neomenthyl groups: importance of alternating sequences of chiral and achiral fluorene units

Synthesis of optically active through-space conjugated polymers consisting of planar chiral [2.2]paracyclophane and quaterthiophene

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