Stimuli-responsive circularly polarized luminescence from an achiral perylenyl dyad

Li, Junfeng; Yang, Chenglong; Peng, Xuelei; Qi, Qi; Li, Yonghua; Lai, Wen‐Yong; Huang, Wei

doi:10.1039/c7ob01959a

Cited by 31 publications

(33 citation statements)

References 58 publications

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“…These facts, together with the short decay times associated with the luminescent bands (Table 1), made us confident in assigning them to 1 IL fluorescence transitions. It was observed that compound 3, containing the bulkier phosphine, displayed the common shape of TADBC monomer emission of 1, while 4 displayed a different peak-to-shoulder intensity proportion, which might have been an indication of the presence of aggregates [21,22]. Fluorescence decay times were measured for all the compounds using time-correlated single-photon counting (TC-SPC) ( Table 1).…”

Section: Compoundmentioning

confidence: 99%

Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties

et al. 2020

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A new 2,7,10,15-tetraethynyldibenzo[g,p]chrysene ligand (1) and two tetranuclear gold(I) derivatives containing PPh3 (3) and PMe3 (4) phosphines were synthesized and characterized by 1H and 31P NMR, IR spectroscopy, and high-resolution mass spectrometry. The compounds were studied in order to analyze the effect of the introduction of gold(I) on the supramolecular aggregation and photophysical properties. Absorption and emission spectra displayed broad bands due to the establishment of π π interactions as an indication of intermolecular contacts and the formation of aggregates. A decrease of the recorded quantum yield (QY) of the gold(I) derivatives was observed compared to the uncomplexed ligand. The introduction of the complexes into poly methyl methacrylate (PMMA) and Zeonex 480R matrixes was analyzed, and an increase of the measured QY of 4 in Zeonex was observed. No phosphorescent emission was detected.

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Section: Compoundmentioning

confidence: 99%

Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties

et al. 2020

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“…Circularly polarized luminescence (CPL) shows great potential as a probe to help understand excited-state chirality and for use in a range of practical photonic applications, including asymmetric synthesis, , optical storage devices, biological probes , and 3D displays . A variety of CPL materials have been reported, including small organic molecules, − π-conjugated polymers, , chiral lanthanide complexes, aggregation-induced-emission gens − and perovskite nanocrystals . To date, the main strategies used to produce CPL involve chiral blending, , supramolecular assemblies , and chiral liquid crystal encapsulation. , However, these strategies result in a limited dissymmetry factor ( g lum ) and unpredictable chirality .…”

Section: Introductionmentioning

confidence: 99%

Tunable Upconverted Circularly Polarized Luminescence in Cellulose Nanocrystal Based Chiral Photonic Films

et al. 2019

ACS Appl. Mater. Interfaces

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Integrating chromophores into chiral photonic crystals to fabricate materials that exhibit circularly polarized luminescence (CPL) is promising as this method allows efficient manipulation of the spontaneous emission within photonic bandgaps (PBGs). However, tuning the wavelength of CPL and the dissymmetry factor (g lum) in a convenient and accurate manner remains a significant challenge. Here, right-handed, tunable upconverted CPL (UC-CPL) emission was achieved by integrating multiple emissive, upconverting nanoparticles into cellulose nanocrystal based chiral photonic films that had tunable PBGs. Glycerol was used to tune the PBGs of the chiral photonic films, which yielded tunable UC-CPL emission at 450 and 620 nm with a tailored g lum. Moreover, humidity responsive UC-CPL at blue wavelength was obtained from glycerol-composite photonic film, with a g lum that ranged from −0.156 to −0.033. It was possible because the PBG and chirality of photonic composite was responded to the relative humidity. This work gives valuable insight into tunable and stimuli-responsive CPL photonic systems.

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“…This contrasting difference is most likely to arise from the extremely short fluorescence lifetime of perylene . Thus, one might imagine that the excited perylene is too short‐lived to encounter with another, mostly that of the ground state . Therefore, only a faint CPL was claimed to be observed from perylene‐based excimers to date .…”

Section: Figurementioning

confidence: 99%

Observation of Circularly Polarized Luminescence of the Excimer from Two Perylene Cores in the Form of [4]Rotaxane

Hayashi

Miyaoka

Ohishi

et al. 2018

Chemistry A European J

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A perylene-based [4]rotaxane was synthesized by the Sonogashira coupling of the 2:2 inclusion complex consisting of two alkynylperylenes and two γ-cyclodextrins with terphenyl-type stopper molecules. The [4]rotaxane showed orange emission attributable to the spatially restricted alkynylperylene excimer with a high fluorescence quantum yield of Φ =0.15. The excimer emission was circularly polarized as a result of the asymmetrically twisted perylene pair under the influence of chirality of γ-cyclodextrin. The g value of the excimer emission was determined to be -2.1×10 at 573 nm, as large as those of the corresponding known pyrene-based series. This is the first example, in which circularly polarized luminescence was clearly observed from the excimer of a pair of perylene cores.

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Stimuli-responsive circularly polarized luminescence from an achiral perylenyl dyad

Cited by 31 publications

References 58 publications

Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties

Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties

Tunable Upconverted Circularly Polarized Luminescence in Cellulose Nanocrystal Based Chiral Photonic Films

Observation of Circularly Polarized Luminescence of the Excimer from Two Perylene Cores in the Form of [4]Rotaxane

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