63619-28-3Relevant articles and documents
Synthesis, spectroscopy and photochemistry of novel branched fluorescent nitro-stilbene derivatives with benzopheonone groups
Gao, Fang,Liu, Jian,Peng, Huayong,Hu, Nvdan,Li, Hongru,Zhang, Shengtao
, p. 703 - 712 (2011/10/31)
In this article, we presented novel nitro-stilbene derivatives with one or two benzophenone groups as photoinitiators via multi-steps synthesis. The ultraviolet/visible spectroscopy and the emission spectroscopy of the compounds were determined in various solvents. The results showed that the ultraviolet/visible absorption spectroscopy of the derivatives with benzophenone moiety displayed overlap effects of nitro-stilbene and benzophenone parts. In non-polar solvents, the derivatives exhibited strong emission, while they displayed weak emission in modest and strong polar solvents. Dyes-linked benzopheonone groups displayed stronger fluorescence emission than simple chromophore parent molecules. Visible-light photoinitiating effects of the derivatives were investigated extensively. Methyl methacrylate could be photoinitiated efficiently by the derivatives with benzophenone moieties at very low concentration, even at 1×10-5 mol/ L. While the photopolymerization efficiency of styrene initiated by the derivatives was lower than that of methyl methacrylate. Our results showed that the dye-linked photoinitators had more efficient photoinitiating than the simple mixture of dye and photoinitator. Furthermore, the derivative with two benzophenone groups displayed more excellent phototiniatiating effects than the derivative with one benzophenone group. Thermodynamics driving for the occurrence of visible-light photoinduced intramolecular electron transfer from chromophore part to benzophenone part was evaluated. Benzopinacol moiety produced in photoreaction was confirmed by nuclear magnetic resonant spectroscopy. Thermal stability of the derivatives was analyzed. Springer Science+Business Media, LLC 2010.
Detection of explosive vapors with a charge transfer molecule: Self-assembly assisted morphology tuning and enhancement in sensing efficiency
Vijayakumar, Chakkooth,Tobin, Gerard,Schmitt, Wolfgang,Kim, Mi-Jeong,Takeuchi, Masayuki
supporting information; scheme or table, p. 874 - 876 (2010/06/12)
Use of a fluorescent organic molecule consisting of binaphthyl functionalized with donor-acceptor substituted stilbenes for the detection of dinitrotoluene (DNT) and trinitrotoluene (TNT) vapors and enhancement in its sensing efficiency via self-assembly assisted morphology tuning are described. The Royal Society of Chemistry 2010.
Synthesis of a thiophene-based nonlinear optical chromophore
Davis, Matthew C.,Hollins, Richard A.,Douglas, Brad
, p. 3515 - 3523 (2007/10/03)
This report details an eight-step synthesis of the thiophene-type nonlinear optical chromophore 1 in 38% overall yield. Only one early step required chromatography. Copyright Taylor & Francis Group, LLC.
Hydroxy-functionalized bipyridine and tris(bipyridine)metal chromophores: Synthesis and optical properties
Bouder, Thomas Le,Viau, Lydie,Guegan, Jean-Paul,Maury, Olivier,Bozec, Hubert Le
, p. 3024 - 3033 (2007/10/03)
A new family of symmetrically and unsymmetrically-substituted 4,4′-bis[(dialkylamino)styryl]-2,2′-bipyridine ligands, containing 1-4 hydroxy groups on their dialkylamino moieties, have been synthesized. They are readily prepared in good to excellent yields from 4,4′-dimethyl-2,2′-bipyridine and tetrahydropyranyloxy-protected [(hydroxyalkyl)amino]-benzaldehydes. These chromophores display excellent thermal stabilities, with decomposition temperatures of up to 310 °C. The influence of the OH groups on the optical properties (absorption and emission) is discussed. The synthesis of the corresponding heteroleptic and homoleptic tris(bipyridine)-metal(ii) complexes (M2+ = Ru2+, Zn2+), as building blocks for the elaboration of macromolecular NLO-phores, is also described. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.
A convenient synthesis of push-pull polyenes designed for the elaboration of efficient nonlinear optical materials
Mladenova, Margarita,Ventelon, Lionel,Blanchard-Desce, Mireille
, p. 6923 - 6926 (2007/10/03)
We present a convenient and versatile synthetic approach towards push-pull phenylpolyenes and diphenylpolyenes bearing a hydroxyl functional group. These chromophores are of particular interest for the design of efficient nonlinear optics materials due to their large optical nonlinearities, their transparency in the near IR and their capacity to be incorporated into polymeric materials.
