Synthesis and evaluation of fluorescent materials for colour control of peroxyoxalate chemiluminescence. III. Yellow and red fluorescent emitters

1981 ◽  
Vol 34 (8) ◽  
pp. 1701 ◽  
Author(s):  
PJ Hanhela ◽  
DB Paul
Keyword(s):  
Emission Data ◽  
Peroxyoxalate Chemiluminescence ◽  
Fluorescent Materials

A number of bis(phenylethynyl)-substituted anthracenes and naphthacenes have been synthesized and their suitability as fluorescent additives for peroxyoxalate chemiluminescence evaluated. Fluorescence and chemiluminescence emission data for all compounds are presented. Both 2-chloro- and 6-chloro-5,12-bis(phenylethynyl)naphthacene provide effective scarlet chemiluminescence with the peroxyoxalate system (λmax 609 and 614 nm respectively). Although solutions of both compounds decolorize slowly in the presence of air and light, when used in concentrations of 1-5 × 10-3M they allow efficient chemiluminescence for greater than 5 h.

Synthesis and evaluation of fluorescent materials for colour control of peroxyoxalate chemiluminescence. II. Violet and blue emitters

1981 ◽  
Vol 34 (8) ◽  
pp. 1687 ◽  
Author(s):  
PJ Hanhela ◽  
DB Paul
Keyword(s):  
Peroxyoxalate Chemiluminescence ◽  
Fluorescent Materials ◽  
Blue Emitters ◽  
Synthetic Approaches ◽  
Fluorescent Compounds

Synthetic approaches to efficient blue fluorescent compounds suitable for use in peroxyoxalate chemiluminescence systems are described. Various bis(phenylethynyl)-naphthalenes and -phenan-threnes were obtained but these were shown to produce purple fluorescence and chemiluminescence. Ring substitution of 9,10-diphenylanthracene, however, afforded a number of satisfactory blue fluorescent emitters. The structure and derivation of several byproducts is also discussed.

Synthesis and evaluation of fluorescent materials for colour control of peroxyoxalate chemiluminescence. I. The phenylethynylation of anthraquinone

1981 ◽  
Vol 34 (8) ◽  
pp. 1669 ◽  
Author(s):  
PJ Hanhela ◽  
DB Paul
Keyword(s):  
Sulfuric Acid ◽  
Free Radical ◽  
Aromatic Compounds ◽  
Stannous Chloride ◽  
Sodium Hypophosphite ◽  
Peroxyoxalate Chemiluminescence ◽  
Radical Process ◽  
Fluorescent Materials ◽  
Concentrated Sulfuric Acid ◽  
Free Radical Process

The synthesis of 9,10-bis(phenylethynyl)anthracene has been examined in detail prior to the synthesis of a series of phenylethynyl substituted aromatic compounds which are of interest as fluorescent materials for peroxyoxalate chemiluminescence. Reductions of the 9,10- bis(phenylethynyl)-9,10-dihydroanthracene-9,10-diol precursor by stannous chloride and by sodium hypophosphite-potassium iodide both gave a series of byproducts, in addition to 9,10- bis(phenylethynyl)anthracene. The formation of these compounds is interpreted in terms of a free-radical process. The interaction of 10-hydroxy-10-(phenylethynyl)anthrone with both the reducing systems has been rationalized and the reaction with concentrated sulfuric acid reinterpreted.

Automated Emission Data Registration and Segmentation for IC Analysis

2016 ◽  
Author(s):  
Franco Stellari ◽  
Peilin Song
Keyword(s):  
Data Analysis ◽  
Registration Accuracy ◽  
Emission Data ◽  
Data Registration ◽  
Different Types ◽  
Test Chips

Abstract In this paper, the development of advanced emission data analysis methodologies for IC debugging and characterization is discussed. Techniques for automated layout to emission registration and data segmentations are proposed and demonstrated using both 22 nm and 14 nm SOI test chips. In particular, gate level registration accuracy is leveraged to compare the emission of different types of gates and quickly create variability maps automatically.

scholarly journals Regulation of bi-color fluorescence changes of AIE supramolecular self-assembly gels by the interaction with Al3+ and energy transfer

2021 ◽  
Author(s):  
Xinxian Ma ◽  
Jinlong Yue ◽  
Bo Qiao ◽  
LIli Zhou ◽  
Yang Gao ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Self Assembly ◽  
Fluorescence Emission ◽  
Fluorescent Materials

Supramolecular fluorescent materials have attracted considerable attention in recent years since they endow specific and unique properties to materials. Nevertheless, the utilization of photo-responsive characteristics to modulate their fluorescence emission...

Suppressed energy transfer between different rare earth ions to obtain enhanced and tuned fluorescence by using Janus nanofibers

2021 ◽  
Author(s):  
Ping Wu ◽  
Qianli Ma ◽  
Wensheng Yu ◽  
Jinxian Wang ◽  
Gui-Xia Liu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Rare Earth ◽  
Rare Earth Ions ◽  
Native Fluorescence ◽  
Fluorescent Materials ◽  
Negative Effect

Here, we put forward a viewpoint that the energy transfer between different rare earth (RE) ions plays negative effect in RE ions doped white fluorescent materials if the native fluorescence...

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