Results 191 to 200 of about 18,119 (229)

Energy Migration in Dendritic Oligothiophene-Perylene Bisimides

The Journal of Physical Chemistry B, 2012
A series of novel oligothiophene-perylene bisimide hybrid (DOTPBI) dendrimers up to the second generation (G0, G1, and G2) were investigated. Optical measurements such as nonlinear optical and time-resolved spectroscopy, including two-photon absorption, fluorescence upconversion, and excited state transient absorption were carried out. Results of these
Jin, Zhang, Markus K R, Fischer, Peter, Bäuerle, Theodore, Goodson   +3 more
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Luminescent one-dimensional nanostructures of perylene bisimides

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2013
Perylene bisimides form a unique class of organic semiconductors, in this investigation two symmetrical perylene bisimides caped with 1-butyl (B-PTCDI) and 4,4-diethoxybutyl (DB-PTCDI) have been synthesized and characterized. The compounds self-assembled as a network of nanobelts and nanorods in the solution based self-assembly process. Morphologies of
G, Boobalan, P K M, Imran, S, Nagarajan
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High-Performance NMHC Detection Enabled by a Perylene Bisimide-Cored Metallacycle Complex-Based Fluorescent Film Sensor.

Analytical Chemistry, 2021
Non-methane hydrocarbons (NMHCs) can serve as precursors of ozone and photochemical smog, and hence their highly efficient detection is of great importance for air quality monitoring.
Simin Lin, Xingmao Chang, Zhaolong Wang, Jing Zhang, Nannan Ding, Wenjun Xu, Ke Liu, Zhongshan Liu, Yu Fang   +8 more
semanticscholar   +1 more source

Fabrication of luminescent perylene bisimide nanorods

Journal of Luminescence, 2014
Abstract Perylene bisimides have attracted great interest as a result of their unique electrical and photophysical properties. In the present investigation a N,N′-bis(2-naphthalene-2-yl)perylene-3,4,9,10-tetracarboxylic diimide was synthesized from 2-aminonaphthalene and perylene-3,4,9,10-tetracarboxylic dianhydride.
Gopal Boobalan, Predhanekar Mohamed Imran, S.G. Ramkumar, Samuthira Nagarajan   +3 more
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Positional Isomeric Effects on the Optical Properties, Multivalent Glycosidase Inhibition Effect, and Hypoglycemic Effect of Perylene Bisimide-deoxynojirimycin Conjugates.

Journal of Medicinal Chemistry, 2021
Although multivalent glycosidase inhibitors have shown enhanced glycosidase inhibition activities, further applications and research directions need to be developed in the future.
Ren-Feng Li, Jian-Xing Yang, Jing Liu, Guo-Min Ai, Hui-yan Zhang, Liying Xu, Sixue Chen, Hong-xin Zhang, Xiao‐Liu Li, Z. Cao, Ke-Rang Wang   +10 more
semanticscholar   +1 more source

Bay Region Borylation of Perylene Bisimides

European Journal of Organic Chemistry, 2011
AbstractNovel bispinacolborane‐N,N′‐bis(octyl)‐3,4,9,10‐perylenetetracarboxylic acid bisimide (PBI) was synthesized in high yield. The title compound is a key intermediate in the preparation of PBI aryl derivatives through Suzuki cross‐coupling by using a large variety of easily accessible aryl halides.
Efimov Alexander, Lemmetyinen Helge, Dey Somnath   +2 more
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Perylene Bisimide Atropisomers:  Synthesis, Resolution, and Stereochemical Assignment

The Journal of Organic Chemistry, 2007
The macrocyclization of the tetra-hydroxyphenoxy-substituted perylene bisimide 4 bearing two (R)-configured 2-octyl substituents in the imide positions by etherification with diethylene glycol ditosylate afforded both the diagonally bridged (1,7- and 6,12-linkage) and laterally bridged (1,12- and 6,7-linkage) regioisomers 6 and 7.
Peter, Osswald, Matthias, Reichert, Gerhard, Bringmann, Frank, Würthner   +3 more
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One-Dimensional Exciton Diffusion in Perylene Bisimide Aggregates

The Journal of Physical Chemistry A, 2010
The dynamics and mobility of excitons in J-aggregates of perylene bisimides are investigated by transient absorption spectroscopy with a time resolution of 50 fs. The transient spectra are compatible with an exciton delocalization length of two monomers and indicate that vibrational and configurational relaxation processes are not relevant for the ...
Henning, Marciniak, Xue-Qing, Li, Frank, Würthner, Stefan, Lochbrunner   +3 more
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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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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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