Highly selective ratiometric estimation of fluoride ion based on a BINOL imidazolium cyclophane with dual-channel

Lu, Qiao-Sen; Zhang, Ji; Jiang, Lu; Hou, Ji‐Ting; Yu, Xiao‐Qi

doi:10.1016/j.tetlet.2010.06.062

Cited by 21 publications

(12 citation statements)

References 39 publications

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“…BisBINOLs have also been linked via the 3 ( 29 ‐ 31 in Figure ) and 3,3′ ( 32 – 36 in Figure ) position(s) with 1,2‐diphenylethane‐1,2‐diamine, cyclohexane‐1,2‐diamine, phenylenebis(2‐ethynyl), and imidazolium bridges …”

Section: Enantioselective Sensingmentioning

confidence: 93%

Chirality and Excited State Proton Transfer: From Sensing to Asymmetric Synthesis

Posey

Hanson

2019

ChemPhotoChem

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proton transfer (ESPT) is a unique photochemical process where the electron density shift of a molecule in the excited state dramatically decreases the pK a value of a proton donor site. A majority of ESPT research to date has focused on achiral molecules but there is growing interest in understanding/harnessing ESPT to/from chiral molecules. This review summarizes and critically examines the literature to date describing the role of ESPT in enantioselective fluorescence sensing, asymmetric synthetic organic chemistry, and photoisomerization of chiral molecules. Our goal is to show that despite ESPT of chiral molecules being a relatively new pursuit, there has been significant progress and even greater potential for ESPT in these and other applications yet to be realized.[a] V.

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Section: Enantioselective Sensingmentioning

confidence: 93%

Chirality and Excited State Proton Transfer: From Sensing to Asymmetric Synthesis

Posey

Hanson

2019

ChemPhotoChem

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“…92) presented a pre-organised rigid cavity that was able to encompass certain anions. 128 A family of 1,1'-binaphtyl-based imidazolium chemosensors for the highly selective recognition of tryptophan in aqueous solutions was prepared (see Fig. 92).…”

Section: 11-containing Polycyclic Aromatic Hydrocarbonsmentioning

confidence: 99%

“…92) presented a pre-organised rigid cavity that was able to encompass certain anions. 128 CH 3 CN : DMSO 9 : 1 v/v solutions of 190 showed a dual emission consisting in a structured band centred at 370 nm (BINOL monomer emission) and a broad less intense band centred at 465 nm (BINOL excimer emission) upon excitation at 290 nm. Addition of anion F À induced a significant decrease of the monomer emission, whereas the excimer emission increased and underwent a 20 nm bathochromic shift.…”

Section: àmentioning

confidence: 99%

Chromogenic and fluorogenic chemosensors and reagents for anions. A comprehensive review of the years 2010–2011

et al. 2013

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“…The solution of cyclic derivative 16 in CH 3 CN‐DMSO (9:1) underwent simultaneous decrease and increase in absorbance at 336 and 378 nm with isobestic point at 340 nm, on addition of TBA fluoride and acetate. The fluorescence spectrum of 16 also showed simultaneous decrease and increase in fluorescence intensity respectively at 370 and 485 nm, in the presence of TBA fluoride.…”

Section: Recognition Of Halides and Acetatementioning

confidence: 99%

Imidazolium Based Probes for Recognition of Biologically and Medically Relevant Anions

et al. 2016

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The imidazolium derivatives due to their positive charge possess one of the most polarized and positively charged proton at C2-H to form strong ionic hydrogen bond (also termed as double ionic hydrogen bond) with anions and also provide opportunities for anion - π interactions with electron-deficient imidazolium ring. In the present review article, imidazolium based molecular probes for their ability to recognize inorganic anions like halides, cyanide, perchlorate, carboxylic acids, phosphate, sulfate etc. and their derived molecules viz. nucleotides, DNA, RNA, surfactants, proteins, etc have been discussed. The review covers the literature published after year 2009 and has > 130 references. The previous literature has already been discussed by Yoon et al. in two review articles published in Chem. Soc. Rev. 2006 and 2010.

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Highly selective ratiometric estimation of fluoride ion based on a BINOL imidazolium cyclophane with dual-channel

Cited by 21 publications

References 39 publications

Chirality and Excited State Proton Transfer: From Sensing to Asymmetric Synthesis

Chirality and Excited State Proton Transfer: From Sensing to Asymmetric Synthesis

Chromogenic and fluorogenic chemosensors and reagents for anions. A comprehensive review of the years 2010–2011

Imidazolium Based Probes for Recognition of Biologically and Medically Relevant Anions

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