90134-09-1Relevant articles and documents
Substituent engineering of electrooptic chromophores to suppress their aggregation
Kashiwabara, Kazuki,Inada, Shunsuke,Noguchi, Takamasa,Sato, Yukichi,Kikuchi, Kohei,Imai, Masato,Yamakado, Ryohei,Okada, Shuji
, p. 70 - 77 (2019)
Chromophores composed of 4-cyano-5-dicyanomethylene-2-oxo-3-pyrroline (CDCOP) and a donor have been synthsized for electrooptic applications. Three substituents of [5-(4-aminophenyl)-2-thienyl]-substituted CDCOP 1 and (4-aminophenyl)-substituted CDCOP 2 w
Self-Diagnostic Polymers—Inline Detection of Thermal Degradation of Unsaturated Poly(ester imide)s
Funtan, Alexander,Michael, Philipp,Rost, Simon,Omeis, Jürgen,Lienert, Klaus,Binder, Wolfgang H.
, (2021/04/05)
Monitoring polymer degradation is an important quest, particularly relevant for industry. Although many indirect methodologies for assessing polymer degradation exist, only few are applicable for an inline-monitoring via optic detection-systems. An inline
Synthesis, physical properties, and chemistry of donor-acceptor-substituted pentacenes
Lehnherr, Dan,Adam, Matthias,Murray, Adrian H.,McDonald, Robert,Hampel, Frank,Tykwinski, Rik R.
, p. 303 - 314 (2017/03/09)
Pentacenes bearing electron-donating and (or) -withdrawing groups, namely methoxy-, dialkylamino-, and nitroaryl moieties, are synthesized to afford polarized pentacenes. The optical, electrochemical, and chemical properties of these derivatives are explo
Two-photon absorption properties of proquinoidal D-A-D and A-D-A quadrupolar chromophores
Susumu, Kimihiro,Fisher, Jonathan A.N.,Zheng, Jieru,Beratan, David N.,Yodh, Arjun G.,Therien, Michael J.
scheme or table, p. 5525 - 5539 (2011/08/06)
We report the synthesis, one- and two-photon absorption spectroscopy, fluorescence, and electrochemical properties of a series of quadrupolar molecules that feature proquinoidal p-aromatic acceptors. These quadrupolar molecules possess either donoracceptor donor (D-A-D) or acceptordonoracceptor (A-D-A) electronic motifs, and feature 4-N,N-dihexylaminophenyl, 4-dodecyloxyphenyl, 4-(N,N-dihexylamino)benzo[c][1,2,5]thiadiazolyl or 2,5-dioctyloxyphenyl electron donor moieties and benzo[c][1,2,5]thiadiazole (BTD) or 6,7-bis(30,70-dimethyloctyl)[1,2,5]thiadiazolo[3,4-g]quinoxaline (TDQ) electron acceptor units. These conjugated structures are highly emissive in nonpolar solvents and exhibit large spectral red-shifts of their respective lowest energy absorption bands relative to analogous reference compounds that incorporate phenylene components in place of BTD and TDQ moieties. BTD-based D-A-D and A-D-A chromophores exhibit increasing fluorescence emission redshifts, and a concomitant decrease of the fluorescence quantum yield (Ff) with increasing solvent polarity; these data indicate that electronic excitation augments benzothiadiazole electron density via an internal charge transfer mechanism. The BTD- and TDQcontaining structures exhibit blue-shifted two-photon absorption (TPA) spectra relative to their corresponding one-photon absorption (OPA) spectra, and display high TPA cross sections (>100 GM) within these spectral windows. D-A-D and A-D-A structures that feature more extensive conjugation within this series of compounds exhibit larger TPA cross sections consistent with computational simulation. Factors governing TPA properties of these quadrupolar chromophores are discussed within the context of a three-state model.
FLUORESCENT SOLVATOCHROMIC PIGMENT
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Page/Page column 8, (2012/01/03)
The present invention presents a novel fluorescent solvatochromic dye that (1) has an ionic terminal that makes it easier to use n a hydrophilic surface or in polar solvents, (2) can be efficiently excited by commonly used Argon lasers (488 nm), (3) shift
A cheap and efficient method for selective para-iodination of aniline derivatives
Monnereau, Cyrille,Blart, Errol,Odobel, Fabrice
, p. 5421 - 5423 (2007/10/03)
A new and cheap protocol for controlled iodination in the para-position of various aniline derivatives is presented. It operates under mild conditions by reacting the aniline derivatives with molecular iodine in a mixture of pyridine/dioxane (1/1 vol) at 0°C.
Donor-substituted perethynylated dehydroannulenes and radiaannulenes: Acetylenic carbon sheets featuring intense intramolecular charge transfer
Mitzel, Frieder,Boudon, Corinne,Gisselbrecht, Jean-Paul,Seiler, Paul,Gross, Maurice,Diederich, Francois
, p. 1130 - 1157 (2007/10/03)
In this article, we report the preparation of unprecedented φ-conjugated macrocycles (Fig. 1) by acetylenic scaffolding using modular tetraethynylethene (TEE, 3,4-diethynylhex-3-ene-1,5-diyne) building blocks. A novel photochemical access to (Z)-bisdeprot
Hexasubstituted Donor-Acceptor Benzenes as Nonlinear Optically Active Molecules with Multiple Charge-Transfer Transitions
Traber, Boris,Wolff, J. Jens,Rominger, Frank,Oeser, Thomas,Gleiter, Rolf,Goebel, Mark,Wortmann, Ruediger
, p. 1227 - 1238 (2007/10/03)
The synthesis of three novel nonlinear optical (NLO) chromophores with threefold symmetry, namely 1,3,5-tris(4-N,N-diethylaminophenyl)-2,4,6-tris(4-nitrophenyl)benzene (3), 1,3,5-tris(L-N,N-dihexylaminophenylbutadiynyl)-2,4,6-tris(4-nitrophenyl)benzene (1
Metal-catalyzed cross-coupling reactions for the synthesis of functionalized 1,4,5,8-tetraazafulvalenes
Kaepplinger, Christian,Beckert, Rainer
, p. 1843 - 1850 (2007/10/03)
Tetraazafulvalenes can be cross-coupled (palladium-catalyzed) with alkenes or acetylenes. Although Suzuki conditions fail, the Heck and the Sonogashira methods are useful tools for functionalizing tetraazafulvalenes. Starting from the tetraiodoaryl deriva