Search Results - "WORTMANN, Rüdiger"

Dimerization of Merocyanine Dyes. Structural and Energetic Characterization of Dipolar Dye Aggregates and Implications for Nonlinear Optical Materials by Würthner, Frank, Yao, Sheng, Debaerdemaeker, Tony, Wortmann, Rüdiger

“…Aggregation of polar merocyanine dyes has been identified as an important problem in the fabrication of organic materials for photonic applications. In this…”
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Electrochemistry and Photophysics of Donor-Substituted Triarylboranes: Symmetry Breaking in Ground and Excited State by Stahl, Rainer, Lambert, Christoph, Kaiser, Conrad, Wortmann, Rüdiger, Jakober, Ruth

“…We synthesized a series of amino substituted triarylboranes (TABs) 1–3 by copper(I)‐catalyzed cross‐coupling reactions. The title compounds were investigated…”
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Chromophore Design for Photorefractive Organic Materials by Würthner, Frank, Wortmann, Rüdiger, Meerholz, Klaus

“…During the last years, significant progress has been achieved in understanding the mechanism of the photorefractive effect in amorphous organic materials. New…”
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Hydrogen-Bond-Directed Head-to-Tail Orientation of Dipolar Merocyanine Dyes: A Strategy for the Design of Electrooptical Materials by Würthner, Frank, Schmidt, Johann, Stolte, Matthias, Wortmann, Rüdiger

“…Two merocyanine dyes are assembled by multiple hydrogen bonds with summation of their dipole moments (see formula; R=2‐ethylhexyl). It exhibits a strongly…”
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Synthesis and Photophysics of a Neutral Organic Mixed-Valence Compound by Heckmann, Alexander, Lambert, Christoph, Goebel, Mark, Wortmann, Rüdiger

“…Maintaining neutrality: A perchlorinated triarylmethyl radical and a triarylamine redox center were combined in the design of a neutral organic mixed‐valence…”
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Three-Branched Dendritic Dipolar Nonlinear Optical Chromophores, More than Three Times a Single-Strand Chromophore? by Holtmann, Jan, Walczuk, Edita, Dede, Markus, Wittenburg, Christian, Heck, Jürgen, Archetti, Graziano, Wortmann, Rüdiger, Kuball, Hans-Georg, Wang, Yan-Hua, Liu, Kai, Luo, Yi

“…To elucidate the dependence of the nonlinear optical (NLO) response on the conformation of triply branched derivatives, a new series of D-π-A dendrimers has…”
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Electrooptical Chromophores for Nonlinear Optical and Photorefractive Applications by Beckmann, Stefan, Etzbach, Karl-Heinz, Krämer, Peter, Lukaszuk, Katarzyna, Matschiner, Ralf, Schmidt, Andreas J., Schuhmacher, Peter, Sens, Rüdiger, Seybold, Günther, Wortmann, Rüdiger, Würthner, Frank

“…A new series of dyes for nonlinear optical (NLO) and photorefractive (PR) applications investigated by optical and electrooptical absorption spectroscopy…”
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Elongated push–pull diphenylpolyenes for nonlinear optics: molecular engineering of quadratic and cubic optical nonlinearities via tuning of intramolecular charge transfer by Alain, Valérie, Rédoglia, Stéphane, Blanchard-Desce, Mireille, Lebus, Sonja, Lukaszuk, Katarzyna, Wortmann, Rüdiger, Gubler, Ulrich, Bosshard, Christian, Günter, Peter

“…Push–pull polyenes are of particular interest for nonlinear optics (NLO) as well as model compounds for long-distance intramolecular charge transfer (ICT). In…”
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Improved performance of photorefractive polymers based on merocyanine dyes in a polar matrix by Meerholz, Klaus, De Nardin, Yessica, Bittner, Reinhard, Wortmann, Rüdiger, Würthner, Frank

“…Recently, chromophores with a large figure-of-merit for incorporation into photorefractive polymers with low glass-transition temperature have become…”
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Fluorescent H-Aggregates of Merocyanine Dyes by Rösch, Ulrich, Yao, Sheng, Wortmann, Rüdiger, Würthner, Frank

“…Unexpected lighting up: A slight rotational twist and rigidification of merocyanine dyes in a face‐to‐face π‐π‐stacked dimer aggregate resulted in an…”
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Effect of S1 Torsional Dynamics on the Time-Resolved Fluorescence Spectra of 9,9‘-Bianthryl in Solution by Elich, Karsten, Kitazawa, Minoru, Okada, Tadashi, Wortmann, Rüdiger

“…Time-resolved fluorescence spectra of 9,9‘-bianthryl (BA) were measured in methylcyclohexane (MCH) and a Decalin−isooctane (D−ISOO) mixture at several…”
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Optical Properties of Spiroconjugated Charge-Transfer Dyes by Maslak, Przemyslaw, Chopra, Anu, Moylan, Christopher R, Wortmann, Rüdiger, Lebus, Sonja, Rheingold, Arnold L, Yap, Glenn P. A

“…A new type of intramolecular charge-transfer dye has been prepared. The LUMO of the acceptor part (1,3-indandione) in these compounds is spiroconjugated with…”
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Hydrogen-Bond-Directed Head-to-Tail Orientation of Dipolar Merocyanine Dyes: A Strategy for the Design of Electrooptical Materials by Würthner, Frank, Schmidt, Johann, Stolte, Matthias, Wortmann, Rüdiger

“…Zwei Merocyanin‐Farbstoffe ordnen sich mithilfe mehrerer Wasserstoffbrücken unter Summation ihrer Dipolmomente an (siehe Formel; R=2‐Ethylhexyl). Durch…”
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Spectral and electrooptical absorption and emission studies on internally hydrogen bonded benzoxazole `double' derivatives: 2,5-bis(benzoxazolyl)hydroquinone (BBHQ) and 3,6-bis(benzoxazolyl)pyrocatechol (BBPC). Single versus double proton transfer in the excited BBPC revisited by Wortmann, Rüdiger, Lebus, Sonja, Reis, Heribert, Grabowska, Anna, Kownacki, Krzysztof, Jarosz, Slawomir

“…Ground and excited state dipole moments and polarizabilities of 2,5-bis(benzoxazolyl)hydroquinone (BBHQ) and 3,6-bis(benzoxazolyl)pyrocatechol (BBPC) are…”
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Dimers of Dipyrrometheneboron Difluoride (BODIPY) with Light Spectroscopic Applications in Chemistry and Biology by Bergström, Fredrik, Mikhalyov, Ilya, Hägglöf, Peter, Wortmann, Rüdiger, Ny, Tor, Johansson, Lennart B.-Å

“…A ground-state dimer (denoted DI ) exhibiting a strong absorption maximum at 477 nm (ε = 97 000 M-1cm-1) can form between adjacent BODIPY groups attached to…”
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Effect of Polarity and Structural Design on Molecular Photorefractive Properties of Heteroaromatic-Based Push-Pull Dyes by Archetti, Graziano, Abbotto, Alessandro, Wortmann, Rüdiger

“…A combined experimental (optical and electro‐optical absorption measurements) and computational (ab initio RHF and DFT) approach has been used to investigate…”
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A Distinctive Example of the Cooperative Interplay of Structure and Environment in Tuning of Intramolecular Charge Transfer in Second-Order Nonlinear Optical Chromophores by Abbotto, Alessandro, Beverina, Luca, Bradamante, Silvia, Facchetti, Antonio, Klein, Christopher, Pagani, Giorgio A., Redi-Abshiro, Mesfin, Wortmann, Rüdiger

“…The strongly enhanced cooperative influence of medium polarity and organic structural design on the first hyperpolarizability β of a novel family of highly…”
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Hexasubstituted Donor-Acceptor Benzenes as Nonlinear Optically Active Molecules with Multiple Charge-Transfer Transitions by Traber, Boris, Wolff, J. Jens, Rominger, Frank, Oeser, Thomas, Gleiter, Rolf, Goebel, Mark, Wortmann, Rüdiger

“…The synthesis of three novel nonlinear optical (NLO) chromophores with threefold symmetry, namely…”
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Optimized Two-Dimensional NLO Chromophores with a Threefold Symmetry Axis by Wolff, J. Jens, Siegler, Fred, Matschiner, Ralf, Wortmann, Rüdiger

“…A new NLO standard has been set by compound 1 for the substance class of analines: Their second‐order polarizability β is two orders of magnitude higher than…”
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Nonlinear optical properties of pyridinium-betaines of squaric acid: Experimental and theoretical study by Kolev, Tsonko M., Yancheva, Denitsa Y., Stamboliyska, Bistra A., Dimitrov, Momtchil D., Wortmann, Rüdiger

“…The linear and nonlinear optical properties of six pyridinium-betaines of squaric acid were characterized by means of electro-optical absorption measurements…”
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