Results 161 to 170 of about 3,082 (195)

Halochromic and hydrochromic squaric acid functionalized perylene bisimide

Chemical Communications, 2015
A squaric acid functionalized perylene bisimide senses solvent polarity, pH and humidity through the intramolecular charge transfer initiated by protonation/deprotonation.
Takeshi, Maeda, Frank, Würthner
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Molecular Assemblies of Perylene Bisimide Dyes in Water

Angewandte Chemie International Edition, 2012
AbstractPerylene bisimides are among the most valuable functional dyes and have numerous potential applications. As a result of their chemical robustness, photostability, and outstanding optical and electronic properties, these dyes have been applied as pigments, fluorescence sensors, and n‐semiconductors in organic electronics and photovoltaics ...
Daniel, Görl, Xin, Zhang, Frank, Würthner   +2 more
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Localization/Delocalization of Charges in Bay‐Linked Perylene Bisimides

Chemistry – A European Journal, 2012
AbstractThe copper‐mediated Ullmann coupling of 1,7‐dibromoperylene bisimides afforded structurally perfect singly‐linked perylene bisimide (PBI) arrays, whilst the homo‐coupling of 1,12‐dibromoperylene bisimides gave doubly‐linked and triply‐linked diperylene bisimides.
W. Jiang, C. Xiao, L. Hao, Z. Wang, H. Ceymann, C. Lambert, DI MOTTA, SIMONE, NEGRI, FABRIZIA   +7 more
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Light‐Driven Charge Separation in Isoxazolidine–Perylene Bisimide Dyads

Chemistry – A European Journal, 2009
AbstractA series of arrays for light‐driven charge separation is presented, in which perylene tetracarboxylic bisimide is the light‐absorbing chromophore and electron acceptor, whereas isoxazolidines are colourless electron donors, the electron‐releasing properties of which are increased with respect to the amino group by means of the α‐effect.
H Langhals, A Obermeier, Y Floredo, A Zanelli, L Flamigni   +4 more
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Heterocyclic Annelated Di(perylene bisimide): Constructing Bowl-Shaped Perylene Bisimides by the Combination of Steric Congestion and Ring Strain

The Journal of Organic Chemistry, 2009
In this paper, we present the synthesis of S- and N-heterocyclic annelated di(perylene bisimide) with extraordinary doubly bowl-shaped structures. The structures of fused PBI bowls confirmed by single-crystal X-ray structure analysis and temperature-dependent (1)H NMR are realized by the introduction of the steric congestion in nonbay regions and by ...
H. Qian, W. Yue, Y. Zhen, DI MOTTA, SIMONE, E. Di Donato, NEGRI, FABRIZIA, J. Qu, W. Xu, D. Zhu, Z. Wang   +9 more
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A Perylene Bisimide Organogelator for Chlorinated Solvents

Asian Journal of Organic Chemistry, 2014
AbstractDye‐incorporated gel‐like materials are an attractive functional soft matter for optoelectronic applications. Chlorinated solvents are commonly used for the development of organic devices. Herein, we report that a perylene‐bisimide‐functionalized flexible bisurea can work as an efficient organogelator for several chlorinated solvents.
Xu Lin, Misaki Hirono, Hiroki Kurata, Tomohiro Seki, Yukihiro Maruya, Ken‐ichi Nakayama, Shiki Yagai   +6 more
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Asymmetric perylene bisimide dyes with strong solvatofluorism

Dyes and Pigments, 2013
Abstract Two asymmetric perylene bisimide dyes, 1-cyano-7-piperidinylperylene bisimide ( 1 ) and 1-bromo-7-piperidinylperylene bisimide ( 2 ), were synthesized and fully characterized. These molecules undergo an excited-state intramolecular electron transfer reaction, resulting in a unique charge transfer emission, of which the peak wavelength ...
Ming-Hui Luo, Kew-Yu Chen
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(Invited) Element-Inserted Perylene Bisimides

ECS Meeting Abstracts
I report the synthesis and properties of element-inserted perylene bisimides.
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Relaxation dynamics of higher excited states of perylene-substituted perylene bisimide derivatives

The Journal of Chemical Physics
Stepwise two-photon absorption processes have received considerable attention, especially in photocatalysis, due to their relatively lower power threshold, characteristic spatial selectivity, amplification of chemical reactions, and so on. Meanwhile, studies on the relaxation dynamics of higher excited states in condensed systems have been limited for ...
Yoichi Kobayashi, Daiki Fukuda, Yoshinori Okayasu, Yuki Nagai   +3 more
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Oligothiophene-Perylene Bisimide Dendrimers

Synfacts, 2009
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