Synthesis, liquid crystalline and photoluminscent properties of 1,3,4-oxadiazole derivatives: From calamitic monomers, H-Shaped dimers to calix[4]arene-based tetramers

Han, Jie; Zhiqiang, Xi; Wang, Fuli; Bu, Liheng; Wang, Yanmei

doi:10.1016/j.dyepig.2018.03.008

Cited by 8 publications

(2 citation statements)

References 38 publications

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“…The main progress in this area has been well reviewed ( Cao et al, 2019 ; Sivaraman et al, 2018 ; Udhayakumari et al, 2017 ; Liu et al, 2017 ), and many fluorescent chemosensors for Cu 2+ ion based on various fluorophores such as coumarin ( Zhang et al, 2019 ), Bodipy ( Ömeroğlu et al, 2021 ), rhodamine ( Fernandes and Raimundo, 2021 ), Schiff base ( Singh et al, 2020 ), pyrene ( Kowser et al, 2021 ), and 1,3,4-oxadiazole ( Wang, et al, 2018 ) have been reported by different research groups. Among these fluorescent chemosensors, the 1,3,4-oxadiazoles have drawn special interest due to their electron-deficient nature, high photoluminescence quantum yield, and excellent chemical stability, and have found practical applications in the fields of organic light-emitting diodes ( Meng et al, 2020 ) and liquid crystals ( Han et al, 2013 ; Han et al, 2015 ; Han et al, 2018 ). In addition, the nitrogen and oxygen atoms of the 1,3,4-oxadiazole unit can provide potential coordination sites with metal ions, which makes it usable as a signaling component in fluorescent chemosensors.…”

Section: Introductionmentioning

confidence: 99%

A Novel Calix[4]Crown-Based 1,3,4-Oxadiazole as a Fluorescent Chemosensor for Copper(II) Ion Detection

Sun

Zhang

et al. 2021

Front. Chem.

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The synthesis and characterization of a novel florescent chemosensor 1 with two different types of cationic binding sites have been reported in this work, which is a calix[4]crown derivative in 1,3-alternate conformation bearing two 2-phenyl-5-(4-dimethylaminopyenyl)-1,3,4-oxadiazole units. The recognition behaviors of 1 in dichloromethane/acetonitrile solution to alkali metal ions (Na+ and K+), alkaline earth metal ions (Mg2+ and Ca2+), and transition metal ions (Co2+, Ni2+, Zn2+, Cd2+, Cu2+, Mn2+, and Ag+) have been investigated by UV-Vis and fluorescence spectra. The fluorescence of 1 might be quenched selectively by Cu2+ due to the photo-induced electron transfer mechanism, and the quenched emission from 1 could be partly revived by the addition of Ca2+ or Mg2+; thus, the receptor 1 might be worked as an on–off switchable fluorescent chemosensor triggered by metal ion exchange.

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Section: Introductionmentioning

confidence: 99%

A Novel Calix[4]Crown-Based 1,3,4-Oxadiazole as a Fluorescent Chemosensor for Copper(II) Ion Detection

Sun

Zhang

et al. 2021

Front. Chem.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The main progress in this area has been well reviewed (Cao et al, 2019;Sivaraman et al, 2018;Udhayakumari et al, 2017;Liu et al, 2017), and many fluorescent chemosensors for Cu 2+ ion based on various fluorophores such as coumarin (Zhang et al, 2019), Bodipy (Ömeroğlu et al, 2021), rhodamine (Fernandes and Raimundo, 2021), Schiff base (Singh et al, 2020), pyrene (Kowser et al, 2021), and 1,3,4-oxadiazole (Wang, et al, 2018) have been reported by different research groups. Among these fluorescent chemosensors, the 1,3,4-oxadiazoles have drawn special interest due to their electron-deficient nature, high photoluminescence quantum yield, and excellent chemical stability, and have found practical applications in the fields of organic light-emitting diodes (Meng et al, 2020) and liquid crystals (Han et al, 2013;Han et al, 2015;Han et al, 2018). In addition, the nitrogen and oxygen atoms of the 1,3,4-oxadiazole unit can provide potential coordination sites with metal ions, which makes it usable as a signaling component in fluorescent chemosensors.…”

Section: Introductionmentioning

confidence: 99%