41876-70-4Relevant articles and documents
Reversible mechanofluorochromism of aniline-terminated phenylene ethynylenes
Sharber, Seth A.,Shih, Kuo-Chih,Mann, Arielle,Frausto, Fanny,Haas, Terry E.,Nieh, Mu-Ping,Thomas, Samuel W.
, p. 5415 - 5426 (2018/06/27)
Seven three-ring phenylene-ethynylene (PE) structural analogs, differing only in the lengths of alkyl chains on terminal aniline substituents, show 50-62 nm bathochromic shifts in emission maxima in response to mechanical force (mechanofluorochromism, MC)
1,1-Dicyano-4-[4-(diethylamino)phenyl]buta-1,3-dienes: Structure-property relationships
Tancini, Francesca,Wu, Yi-Lin,Schweizer, W. Bernd,Gisselbrecht, Jean-Paul,Boudon, Corinne,Jarowski, Peter D.,Beels, Marten T.,Biaggio, Ivan,Diederich, Francois
supporting information; experimental part, p. 2756 - 2765 (2012/06/30)
We report the synthesis and physical study of a series of 1,1-dicyano-4-[4-(diethylamino)phenyl]buta-1,3-dienes in which the number and position of additional CN substituents along the 1,1-dicyanobuta-1,3-dienyl fragment is systematically varied. While X-
Π (PI)-CONJUGATED FLUOROIONOPHORES AND METHOD FOR DETERMINING AN ALKALI ION
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, (2012/09/22)
The present invention relates to π-conjugated fluoroionophores, methods for their preparation, and their use and a method for determining an alkali ion. Fluoroionophoric compounds of the general formula I are described Ionophore – π-Linker - Fluorophore (
High Na+ and K+-induced fluorescence enhancement of a π-conjugated phenylaza-18-crown-6-triazol-substituted coumarin fluoroionophore
Ast, Sandra,Mueller, Holger,Flehr, Roman,Klamroth, Tillmann,Walz, Bernd,Holdt, Hans-Juergen
, p. 4685 - 4687 (2011/06/20)
The new π-conjugated 1,2,3-triazol-1,4-diyl fluoroionophore 1 generated via Cu(i) catalyzed [3 + 2] cycloaddition shows high fluorescence enhancement factors (FEF) in the presence of Na+ (FEF = 58) and K+ (FEF = 27) in MeCN and high
Fluorogenic compounds converted to fluorophores by photochemical or chemical means and their use in biological systems
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Page/Page column 38, (2010/03/02)
Fluorophores derived from photoactivatable azide-pi-acceptor fluorogens or from a thermal reaction of an azide-pi-acceptor fluorogen with an alkene or alkyne are disclosed. Fluorophores derived from a thermal reaction of an alkyne-pi-acceptor fluorogen with an azide are also disclosed. The fluorophores can readily be activated by light and can be used to label a biomolecule and imaged on a single-molecule level in living cells.
Synthesis and electrogenerated chemiluminescence of donor-substituted phenylquinolinylethynes and phenylisoquinolinylethynes: Effect of positional isomerism
Elangovan, Arumugasamy,Yang, Shu-Wen,Lin, Jui-Hsien,Kao, Kuo-Ming,Ho, Tong-Ing
, p. 1597 - 1602 (2007/10/03)
In furtherance of our research on the design, synthesis and study of electrogenerated chemiluminescence (ECL) of new donor substituted phenylquinolinylethynes, we report here more new series with the aim of studying the effect of positional isomerism on their overall photophysical properties with a special focus on ECL. For this study we have chosen 2-, 3-, and 4-(p-substituted phenyl)ethynylquinolines, and 1- and 4-(p-substituted phenyl)ethynylisoquinolines. These ethynes were synthesized in good yields by modified Sonogashira coupling of the corresponding terminal alkyne with the respective haloquinolines. The photophysical properties and ECL were studied in acetonitrile solvent and the various results are discussed.
First synthesis and electrogenerated chemiluminescence of novel p-substituted phenyl-2-quinolinylethynes
Elangovan, Arumugasamy,Chen, Ting-Yu,Chen, Chih-Yuan,Ho, Tong-Ing
, p. 2146 - 2147 (2007/10/03)
A series of p-substituted phenyl-2-quinolinylethynes as blue-green emitters were synthesized using a modified Sonogashira coupling reaction and their electrogenerated chemiluminescence properties are reported.
Sonogashira coupling reaction with diminished homocoupling
Elangovan, Arumugasamy,Wang, Yu-Hsiang,Ho, Tong-Ing
, p. 1841 - 1844 (2007/10/03)
(Matrix presented) The side product from homocoupling reaction of two terminal acetylenes in the Sonogashira reaction can be reduced to about 2% using an atmosphere of hydrogen gas diluted with nitrogen or argon. Terminal arylethynes, diarylethynes, and a few new arylpyridylethynes with donor substituents have been synthesized in very good yields. Comparative control experiments suggest that the homocoupling yield is determined by concentration of both catalyst and oxygen.
Gold electrodes wired for coupling with the deeply buried active site of arthrobacter globiformis amine oxidase
Hess, Corinna R.,Juda, Gregory A.,Dooley, David M.,Amii, Ricky N.,Hill, Michael G.,Winkler, Jay R.,Gray, Harry B.
, p. 7156 - 7157 (2007/10/03)
Diethylaniline-terminated oligo(phenyl-ethynyl)-thiol (DEA-OPE-SH) wires on Au-bead electrodes facilitate electron tunneling to and from the deeply buried topaquinone (TPQ) cofactor in Arthrobacter globiformis amine oxidase (AGAO). Reversible cyclic volta
Nondipolar structures with threefold symmetry for nonlinear optics
Wortmann, Ruediger,Glania, Christoph,Kraemer, Peter,Matschiner, Ralf,Wolff, Jens,Kraft, Stefan,Treptow, Bjoern,Barbu, Eugen,Laengle, Daniela,Goerlitz, Gunter
, p. 1765 - 1773 (2007/10/03)
The second-order polarizabilities β(-2ω;ω,ω) of six nondipolar NLO chromophores - 1,3,5-tris(isopropyl-amino)-2,4,6-trinitrobenzene (1), 1,3,5-tris(isopropylamino)-2,4,6-tris(trifluoromethylsulfonyl)benzene (2), tris(dimethylimoniomethyl)methide diperchlo