Photophysical properties of a fluorene–bipyridine copolymer and its complexes with europium

Turchetti, Denis A.; Rodrigues, Paula C.; Berlim, Leonardo S.; Zanlorenzi, Cristiano; Faria, Gregório Couto; Atvars, Teresa Dib Zambon; Schreiner, W. H.; Akcelrud, Leni

doi:10.1016/j.synthmet.2011.11.005

Cited by 24 publications

(26 citation statements)

References 31 publications

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“…Previously, Pei and Ling also reported the complete energy transfer from the main chain to the europium complexes in the copolymers bearing pendant europium complexes. While for a europium‐complexed fluorene–bipyridine copolymer reported by Turchetti, as europium complexes were complexed directly with the polymer main chain, no energy transfer from the polymer backbone (polyfluorene) to the metal complex was observed, and the europium complexed polymer emitted strong light from the polymer main chain and weak light from the europium complexes.…”

Section: Resultsmentioning

confidence: 90%

A carbazole–triphenylamine copolymer‐bearing pendant europium complexes: Synthesis and luminescence properties

Jin

Zuo

Gao

et al. 2015

J of Applied Polymer Sci

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A novel carbazole-triphenylamine copolymer-bearing pendant bipyridine PM1TPA and corresponding europium (III) complexed polymer PM1TPA-Eu-x, in which the values of x are 0.1, 0.5, and 1.0 representing the molar ratio of bipyridine ligands complexed with Eu(III), were designed and synthesized. Their chemical structures were confirmed by 1 H NMR, FT-IR, and elemental analysis. Both PM1TPA and PM1TPA-Eu shows good solubility in common organic solvents such as tetrahydrofuran (THF) and CHCl 3 . The 5% weight loss temperature (T d 5% ) of PM1TPA and PM1TPA-Eu-1.0 are 363 o C and 306 o C, respectively. The photoluminescence (PL) spectra of PM1TPA-Eu in solution consists of two emission bands, one in the 400-570 nm region and another at 612 nm, corresponding to the emission of polymer main chain and europium complexes, respectively. When the concentration of PM1TPA-Eu-1.0 in THF solution increases, the PL intensity in the 400-570 nm regions became more and more weaker. And only the characteristic emission of europium complex was observed in the solid film, which indicates that the excited energy absorbed by the polymer backbone was efficiently transferred to the europium complexes. Furthermore, nearly monochromatic red electroluminescence from europium complex was observed from the polymeric light-emitting diode using PM1TPA-Eu-1.0 as the emissive layer under 25 V forward bias.

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Section: Resultsmentioning

confidence: 90%

A carbazole–triphenylamine copolymer‐bearing pendant europium complexes: Synthesis and luminescence properties

Jin

Zuo

Gao

et al. 2015

J of Applied Polymer Sci

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“…This argument was also used to account for the magnetic results reported in a recent publication for similar systems, indicating that π stacking is a favorable factor for the enhancement of the magnetic properties. Morphological effects on the packing of conjugated polymer chains have been addressed in a number of publications …”

Section: Resultsmentioning

confidence: 99%

Magnetic properties of a polyfluorene derivative containing complexed neodymium ions

Santana

Turchetti

Zanlorenzi

et al. 2019

J Polym Sci B Polym Phys

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Poly[9,9′‐dihexylfluorene‐2,7‐diyl)‐6,6″‐(2,2′:6′,2″‐terpyridine)] (LaPPS75) and its complexes with neodymium were synthesized and characterized. Magnetic measurements showed that the noncomplexed polymer presented a ferromagnetic contribution due to the formation of π stacking, and that in absence of those, the ferromagnetic behavior is suppressed. The pristine polymer, the complexed one and a low‐molecular‐weight model compound with the same structure of the complexed site in the parent polymer were studied. The observed behavior found is presented and discussed, the most important finding was that when a conjugated chain is used as a host for the metallic ion, an amplification of four times for the magnetization is achieved, using the same metallic content for complexed polymer and model compound for comparison. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2019, 57, 304–311

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“…Compound I was synthesized according to the methodology described by Rodrigues et al and Turchetti et al . and after purification it was reacted via Wittig reaction with 1,4‐bromobenzaldehyde giving the monomer II , which exhibited a yellow color and a strong blue emission.…”

Section: Resultsmentioning

confidence: 99%

“…The compound was synthesized as described elsewhere . In a round bottom necked flask it was added 500 mg (0.48 mmol) of 2,7‐bis[(p‐triphenylphosphonium)methyl]‐9,9‐di‐n‐hexylfluorene dibromide (I), 195 mg (1.05 mol) of p‐bromobenzaldehyde, and 23 mL of chloroform, under argon atmosphere.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of a PPV‐fluorene derivative: Applications in luminescent devices

Rodrigues

Fontes

Torres

et al. 2015

J of Applied Polymer Sci

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Synthesis of a polyfluorene/poly(p-phenylene vinylene) derivative, the Poly [(9,9 0 -di-hexylfluorenediylvinylene-alt-1,4-phenylenevinylene)-co-((9,9 0 -(3-t-butylpropanoate) fluorene-1,4-phenylene)] (LaPPS 42) was performed following Wittig and Suzuki routes. Polyfluorenes and derivatives have been used in electroluminescent devices, and the synthesis described here has the advantage in pave the way to get distinct structures having different emission spectra. An extensive study of its electrochemical, thermomechanical, optical, and structural properties was carried out, as well as its application in electroluminescent devices. Polymer light-emitting diodes (PLEDs) and polymer light-emitting electrochemical cells (PLECs) were built using LaPPS 42 as active layer, and their electric and optical characterizations confirm they have a potential as active element in electroluminescent devices.

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Photophysical properties of a fluorene–bipyridine copolymer and its complexes with europium

Cited by 24 publications

References 31 publications

A carbazole–triphenylamine copolymer‐bearing pendant europium complexes: Synthesis and luminescence properties

A carbazole–triphenylamine copolymer‐bearing pendant europium complexes: Synthesis and luminescence properties

Magnetic properties of a polyfluorene derivative containing complexed neodymium ions

Synthesis of a PPV‐fluorene derivative: Applications in luminescent devices

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