Electrochemistry and electrogenerated chemiluminescence of benzoxazole derivatives in nonaqueous media

Zhao, Ying; Zhang, Rui; Xu, Yiwei; Qi, Honglan; Chen, Xinbing; Zhang, Chengxiao

doi:10.1016/j.jelechem.2014.12.014

Cited by 7 publications

(6 citation statements)

References 47 publications

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“…The electrochemical investigations were similar with that in Ref. [38]. A typical three-electrode setup with a platinum disk working electrode (2.0 mm diameter), a Pt auxiliary electrode, and a quasi-reference silver wire electrode was used for electrochemical experiment.…”

Section: Apparatusmentioning

confidence: 80%

Efficient green electrogenerated chemiluminescence from cyclometalated iridium(III) complex

Gao

Xia

Zhang

et al. 2015

Journal of Electroanalytical Chemistry

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Section: Apparatusmentioning

confidence: 80%

Efficient green electrogenerated chemiluminescence from cyclometalated iridium(III) complex

Gao

Xia

Zhang

et al. 2015

Journal of Electroanalytical Chemistry

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“…Although the first report of porphyrins ECL by Bader dates back to 1972, there had been rare research on the ECL of porphyrins. − Porphyrinic Zr metal–organic framework (MOF) PCN-224 is a kind of porous structure nanomaterial that is composed of Zr 6 cluster and TCPP with good biocompatibility and excellent stability in a physiological environment, where porphyrins are used for light harvesting as well as in energy and electron transfer. − In recent years, PCN-224 has been used in a photo-electrochemical sensor, fluorescence sensor, photodynamic therapy, and so on. ,, However, the ECL property of PCN-224 has never been studied previously.…”

Section: Introductionmentioning

confidence: 99%

Novel Porphyrin Zr Metal–Organic Framework (PCN-224)-Based Ultrastable Electrochemiluminescence System for PEDV Sensing

Wang

et al. 2021

Anal. Chem.

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The sensitive detection of coronavirus is of vital importance for the prevention of its rapid spread. Porcine epidemic diarrhea virus (PEDV) is a highly contagious coronavirus that causes severe diarrhea and death in neonatal piglets. In this work, a novel PCN-224-based electrochemiluminescence (ECL) system was constructed for PEDV detection with high sensitivity. We found that PCN-224 can be employed as an ECL reporter with a strong signal because of its zirconium-based organic porous frame nanomaterial with a large specific surface area and stable structure. TiO 2 nanoparticles were used as an accelerator for the first time to promote the reduction of coreactant potassium peroxydisulfate on the cathode; thus, the initial ECL signal of PCN-224 was significantly amplified. In the presence of PEDV, the ECL signal decreased due to the block effect to electron transfer. As a result, the novel "signal off" biosensor achieved a sensitive detection of PEDV ranging from 1 pg/mL to 10 ng/mL, with a detection limit of 0.4 pg/mL (S/N = 3). Importantly, the PCN-224 nanomaterial enriched the ECL system in biological analysis, and the proposed strategy provided a new route for coronavirus detection.

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“…Among a wide range of compounds [6][7][8][9][10][11][12][13] and materials [14][15][16][17][18][19] that have shown utility as ECL emitters are boron difluoride (BF 2 ) formazanate complexes such as 1ac, which can be prepared from formazans 2 [20][21] using straightforward and cost-effective syntheses. This makes BF 2 formazanate complexes attractive alternatives to the more commonly studied BODIPY complexes for ECL application.…”

Section: Introductionmentioning

confidence: 99%

“…1 H NMR (399.8 MHz, CDCl 3 ): δ 8.03 (d, 3 J HH = 9 Hz, 2H, aryl CH), 7.85 (d, 3 J HH = 9 Hz, 4H, aryl CH), 7.00−6.95 (m, 6H, aryl CH), 3.87 (s, 3H, OCH 3 ), 3.86 (s, 6H, OCH 3 ) ppm. 13 C NMR (100.5 MHz, CDCl 3 ): δ 160.8, 160.7, 137.9, 137.8, 127.1, 127.0, 125.2 (t, 4 J CF = 3 Hz), 114.6, 114.3, 55.9, 55.7 ppm. 11 B NMR (128.3 MHz, CDCl 3 ): δ −0.5 (t, 1 J BF = 29 Hz) ppm.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Among a wide range of compounds − and materials − that have shown utility as ECL emitters are boron difluoride (BF 2 ) formazanate complexes such as 1a – c , which can be prepared from formazans 2 , using straightforward and cost-effective syntheses. This makes BF 2 formazanate complexes attractive alternatives to the more commonly studied BODIPY complexes for ECL applications. , Crucially, the spectroscopic and electrochemical properties of BF 2 formazanate complexes and related metal complexes have been shown to vary widely with their structure. − …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural Tuning of Boron Difluoride Formazanate Electrochemiluminescence Mediated by Tri-n-propylamine

et al. 2018

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Electrochemistry and electrogenerated chemiluminescence (ECL) of boron difluoride formazanate complexes bearing p-methoxyphenyl N-substituents were studied experimentally and computationally. It was shown that the substituents at the 3-position (R 3) of the formazanate backbone play a critical role in the electrochemistry and ECL of the complexes in the presence of tri-n-propylamine (TPrA). The ECL emission of 1a (R 3 = cyano), 1b (R 3 = phenyl), and 1c (R 3 = p-C 6 H 4 OMe) occurred at peak wavelengths of 724 nm (1.71 eV), 704 nm (1.76 eV), and 723 nm (1.71 eV), consistent with their photoluminescence maxima. The maximum ECL quantum yields, determined relative to the [Ru(bpy) 3 ] 2+ /TPrA system, were 450% for 1a, 244% for 1b, and 94% for 1c, respectively. The relatively large Stokes shifts of 1a-1c were linked to the flattening of these molecules which accompanies their electronic excitation. Through the use of spooling ECL spectroscopy, it was demonstrated that the intensity and relative energies of ECL emission from boron difluoride formazanate complexes can be readily tuned via structure modification, variation in applied potential, and/or scan rate.

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Electrochemistry and electrogenerated chemiluminescence of benzoxazole derivatives in nonaqueous media

Cited by 7 publications

References 47 publications

Efficient green electrogenerated chemiluminescence from cyclometalated iridium(III) complex

Efficient green electrogenerated chemiluminescence from cyclometalated iridium(III) complex

Novel Porphyrin Zr Metal–Organic Framework (PCN-224)-Based Ultrastable Electrochemiluminescence System for PEDV Sensing

Structural Tuning of Boron Difluoride Formazanate Electrochemiluminescence Mediated by Tri-n-propylamine

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