2244891-05-0Relevant articles and documents
Molecular association-induced emission shifts for E/Z isomers and selective sensing of nitroaromatic explosives
Hurlock, Matthew J.,Kan, Yuwei,Le?rivain, Thibaut,Lapka, Joseph,Nash, Kenneth L.,Zhang, Qiang
, p. 6197 - 6203 (2018)
Two 1,2-disubstituted tetraphenylethene E/Z isomers, each containing two cyano functional groups, were successfully synthesized and characterized. Unlike conventional tetraphenylethene molecules, the two isomers possess unique aggregation induced emission red-shift and enhancement behavior. Interestingly, the crystalline solids of these two isomers show distinct emission maxima, which are more than 50 nm apart from each other. These two isomers can selectively detect nitroaromatics, showing a quenching efficiency of picric acid more than 100 times higher than other nitroaromatics. The structural characterization, absorption, and emission in solutions as well as DFT calculations were conducted to help us gain deep insights into the chemistry of these species.
Piezochromic tetraphenylethylene compound as well as preparation method and application thereof
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, (2021/08/28)
The invention relates to the technical field of fluorescent materials, in particular to a piezochromic tetraphenylethylene compound as well as a preparation method and application thereof. The tetraphenylethylene-based compound has excellent piezochromism
METHOD OF DETECTING HUMAN SERUM ALBUMIN IN BIOLOGICAL FLUIDS
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, (2020/03/23)
A method for human serum albumin (HSA) detection in a biological fluid using small molecule, fluorescent compounds having aggregation-induced emission (AIE) characteristics includes contacting the biological fluid with a fluorescent compound to provide a mixture, irradiating the mixture with ultraviolet light, and determining a presence of human serum albumin when an observable emission is detected. The fluorescent compound binds with human serum albumin in the biological fluid and the binding of the compound with the human serum albumin produces the emission. The biological fluid can be urine. The compounds can be water soluble and can include tetrazole-tagged AIEgens. The present methods can be performed using conventional fluorescent spectrometers, normally present in hospitals, or using an HSA detection device. The HSA detection device is portable and can be used by a patient at home.
A new luminescent metal-organic framework based on dicarboxyl-substituted tetraphenylethene for efficient detection of nitro-containing explosives and antibiotics in aqueous media
Liu, Xun-Gao,Tao, Chen-Lei,Yu, Huang-Qin,Chen, Bin,Liu, Zhen,Zhu, Gen-Ping,Zhao, Zujin,Shen, Liang,Tang, Ben Zhong
, p. 2983 - 2988 (2018/03/28)
In this work, we synthesized a dicarboxyl-substituted tetraphenylethene (TPE) ligand, 4,4′-(1,2-diphenylethene-1,2-diyl)dibenzoic acid (H2BCTPE), with a prominent aggregation-induced emission (AIE) feature. A two-fold interpenetrated luminescen
Merostabilization in radical ions, triplets, and biradicals. 5. The thermal cis-trans isomerization of para-substituted tetraphenylethylenes
Leigh, William J.,Arnold, Donald R.
, p. 609 - 620 (2007/10/02)
The cis- and trans-isomerization of four para-substituted (three disubstituted and one tetrasubstituted) tetraphenylethylenes have been synthesized, separeted, and characterized by either dipole moment or X-ray analysis.The rates of thermal isomerization
Merostabilization in radical ions, triplets, and biradicals. 6. The excited state behaviour of para-substituted tetraphenylethylenes
Leigh, William J.,Arnold, Donald R.
, p. 3061 - 3075 (2007/10/02)
The half-wave oxidation and reduction potentials, measured by cyclic voltammetry, of tetraphenylethylene and a series of para-substituted (cyano, methyl, and methoxy) derivatives are found to correlate with ?+ and ?- values respectively.The deviations from these correlations that are observed for one of the derivatives (unsymmetrically substituted) are attributed to merostabilization.The nature of the first excited singlet state of these compounds is investigated by spectroscopic and photochemical means.Quantum yields for the direct cis-trans photoisomerization demonstrate that this provides the dominant pathway for decay of the singlet state.The ?,?* triplet energies are estimated from a qualitative investigation of the relative efficiencies of triplet-sensitized cis-trans isomerization as a function of sensitizer triplet energy.
