Benzimidazole Derivatives: Selective Fluorescent Chemosensors for the Picogram Detection of Picric Acid

Xiong, Jun; Li, Jianxiao; Mo, Guang-Zhen; Huo, Jingpei; Liu, Jinyan; Chen, Xiaoyun; Wang, Zhaoyang

doi:10.1021/jo502281b

Cited by 121 publications

(43 citation statements)

References 55 publications

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“…The quenching results could be quantitatively treated with the Stern-Volmer equation, I 0 /I= 1+ K sv [PA], [26,[59][60][61] where I 0 and I stand for the fluorescence intensity of TBMA in the absence and presence of PA, respectively, [PA] is concentrations of PA, and K sv is the Stern-Volmer constant. The quenching results could be quantitatively treated with the Stern-Volmer equation, I 0 /I= 1+ K sv [PA], [26,[59][60][61] where I 0 and I stand for the fluorescence intensity of TBMA in the absence and presence of PA, respectively, [PA] is concentrations of PA, and K sv is the Stern-Volmer constant.…”

Section: Finding Detection Limit and Selective Detection Of Nitroarommentioning

confidence: 99%

Triphenylamine-decorated BODIPY fluorescent probe for trace detection of picric acid

Zhang

Jin

et al. 2015

RSC Adv.

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Triphenylamine-Decorated BODIPY derivative TBMA was designed and synthesized. Luminogen aggregations were developed through taking advantages of twisted intramolecular charge transfer (TICT) and aggregation-induced emission (AIE) processes. In nonpolar solvents, the locally excited (LE) states of BODIPY luminogens emited intense yellow lights. Increasing solvent polarity brought the luminogens from LE to TICT state, causing a large bathochromic shift in the emission color and a dramatic decrease in emission efficiency. The red emission was greatly boosted by aggregate formation or AIE effect. We also discovered that TBMA could be applied as an efficient chemical sensor for PA detection. The detection limit and quenching constant (K SV ) were determined as 30 ppb and 2.1x10 -6 M -1 respectively. 19 F NMR and 1 H NMR titration analysis verified that F ... H hydrogen bonding is demonstrated as the interacting mode, which is of possibility to facilitates the effective exciton migration.

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Section: Finding Detection Limit and Selective Detection Of Nitroarommentioning

confidence: 99%

Triphenylamine-decorated BODIPY fluorescent probe for trace detection of picric acid

Zhang

Jin

et al. 2015

RSC Adv.

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“…例如, Tolpygin 等 [120,121] 以及 FRET [46,108] 等, 因此根据实际需要, 巧妙利用这些机理设计合成出高选择性、高灵敏度的苯并咪唑类传感器仍需要努力. 同时, 随着杂环类化合物的绿色、高效合成方法的发展 [122] , 以简洁的合成方法得到理想的苯并咪唑基荧光传感器仍然是一个充满活力的课题.…”

Section: 应用于 Ph 的检测unclassified

Progress in the Synthesis and Application of Benzimidazole-Based Fluorescent Chemosensors

Wu¹,

You²,

Guan³

et al. 2015

Chin. J. Org. Chem.

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Many benzimidazole compounds can emit characteristic fluorescence in various organic solvents and aqueous solutions, and their fluorescence properties can be influenced by some factors under certain conditions, which make them used in the field of fluorescence detection. Recently, more and more attention has been attached to the benzimidazole-based fluorescent chemosensors. Their synthesis and the extensive application in the detection of metal ions, anions, inorganic small molecules, metal oxide nanoparticles, organic small molecules, and so on are reviewed. The development trend of benzimidazole-based fluorescent chemosensors is prospected.

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“…Till now, many fluorescent sensors have been developed for the detection of nitroaromatic explosives [7][8][9][10]. Nitroaromatics are electron deficient in nature; due to this reason some electron-rich fluorescent probes can always produce nonfluorescent Meisenheimer or -stacking complexes with nitroaromatics [11,12].…”

Section: Introductionmentioning

confidence: 99%

New Ni-Anthracene Complex for Selective and Sensitive Detection of 2,4,6-Trinitrophenol

Reddy

Kumar

Dhir

et al. 2018

International Journal of Spectroscopy

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Selective and sensitive detection of explosive materials through a simple approach is an attractive area of research having implications on public safety and homeland security. Considering this implication in mind, a new Ni-anthracene complex was designed and synthesized and has been demonstrated as an efficient fluorescence chemosensor for the selective and sensitive detection of 2,4,6-trinitrophenol. Firstly, a fluorescent anthracene ligand (A) was synthesized by treating anthracene-9-carboxaldehyde with 1,3-diaminopropane in presence of a weak acid. To achieve superior selectivity and great quenching efficiency for 2,4,6-trinitrophenol (TNP), a Ni complex, namely, [Ni( 2 -L)(NO 3 )] (B), was synthesized via the reaction of A with Ni(NO 3 ) 2 ⋅6H 2 O. Complex B showed strong emission peak ( max ) at 412 nm and exhibited high selectivity towards TNP among other nitroaromatics and anions. 100 equivalents of TNP made 95% fluorescence quenching of B and its detection limit for TNP was calculated as 2.8 M.

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Benzimidazole Derivatives: Selective Fluorescent Chemosensors for the Picogram Detection of Picric Acid

Cited by 121 publications

References 55 publications

Triphenylamine-decorated BODIPY fluorescent probe for trace detection of picric acid

Triphenylamine-decorated BODIPY fluorescent probe for trace detection of picric acid

Progress in the Synthesis and Application of Benzimidazole-Based Fluorescent Chemosensors

New Ni-Anthracene Complex for Selective and Sensitive Detection of 2,4,6-Trinitrophenol

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