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Forschungsthemen

Biochemie und Naturstoffe
Katalyse und nachhaltige Chemie
Neue Methoden in der Synthese
Organo-Elektrochemie
Organometallverbindungen in der Synthese
Organische Materialien
Polymerchemie
Supramolekulare Chemie und Sensoren

OC-News
Dr. Anup Mandal has been awarded an Alexander von Humboldt Foundation fellowship

We are delighted to announce that Dr. Anup Mandal has been awarded a highly prestigious Humboldt Research Fellowship by the Alexander von HumboldtFoundation to conduct an independent research project in the Bunescu Lab at the Kekulé Institute of Organic Chemistry and Biochemistry.

Dr. Mandal's project will focus on the first-row transition-metal-catalyzed dearomative difunctionalization of arenes to reach molecular complexity.

Plasmon mediated coherent population oscillations in molecular aggregates

The strong coherent coupling of quantum emitters to vacuum fluctuations of the light field offers opportunities for manipulating the optical and transport properties of nanomaterials, with potential applications ranging from ultrasensitive all-optical switching to creating polariton condensates.

Modular Bicyclophane-Based Molecular Platforms

Bicyclophane-based molecular platforms form extended 2D crystalline monolayers after adsorption from solution onto HOPG and contain orthogonal pillars that point towards the supernatant solution phase.

Nanoscale π-conjugated ladders

It is challenging to increase the rigidity of a macromolecule while maintaining solubility. Established strategies rely on templating by dendrons, or by encapsulation in macrocycles, and exploit supramolecular arrangements with limited robustness. Covalently bonded structures have entailed intramolecular coupling of units to resemble the structure of an alternating tread ladder with rungs composed of a covalent bond. We introduce a versatile concept of rigidification in which two rigid-rod polymer chains are repeatedly covalently associated along their contour by stiff molecular connectors. This approach yields almost perfect ladder structures with two well-defined π-conjugated rails and discretely spaced nanoscale rungs, easily visualized by scanning tunnelling microscopy. The enhancement of molecular rigidity is confirmed by the fluorescence depolarization dynamics and complemented by molecular-dynamics simulations. The covalent templating of the rods leads to self-rigidification that gives rise to intramolecular electronic coupling, enhancing excitonic coherence. The molecules are characterized by unprecedented excitonic mobility, giving rise to excitonic interactions on length scales exceeding 100 nm. Such interactions lead to deterministic single-photon emission from these giant rigid macromolecules, with potential implications for energy conversion in optoelectronic devices.

 

Veranstaltungen
KOPO 2024
Physikzentrum Bad Honnef
15:30
KOPO 2024 CONJUGATED OLIGOMERS AND POLYMERS 12th Workshop May 26-29, 2024 Physikzentrum Bad Honnef
GDCh-Kolloquium: Prof. Dr. Christoph Schalley, FU Berlin
Chemische Institute ...
17:00 - 19:00
Supramolecular Gels & Polymers: From Superhydrophobic and Slippery Surfaces to Directional Transport along Gradients In the first part, a very simple ...

Arbeitsgruppen

Jun. Prof. Dr. Bunescu
© A. Bunescu

Jun. Prof. Ala Bunescu

Transition Metal Catalysis
Organic Synthesis

Dickschat
© J. Dickschat

Prof. Dr. Jeroen Dickschat

Naturstoffchemie
Biosynthese, Synthese, Strukturaufklärung

Engeser
© M. Engeser

PD Dr. Marianne Engeser

Massenspektrometrie
Mechanismenaufklärung

AndreasGansäuerNeu
© Sophia Gansäuer

Prof. Dr. Andreas Gansäuer

Katalyse
Radikalchemie
Stereoselektive Synthese

höger
© G. Hübl

Prof. Dr. Sigurd Höger

Organische Chemie
komplexer
Systeme

Lützen
© A. Lützen

Prof. Dr. Arne Lützen

Supramolekulare Chemie
Organische Synthese
NMR-Spektroskopie

menche
© D. Menche

Prof. Dr. Dirk Menche                        

Naturstoffe:
Charakterisierung, Totalsynthese,
Synthesemethoden

Jester.png
© Jester

Dr. Stefan-Sven Jester

Nachwuchsgruppe
Supramolekulare Parkettierung von Oberflächen,
Rastersondenmethoden

von Krbek
© L. von Krbek

Dr. Larissa von Krbek

Nachwuchsgruppe
Treibstoffgetriebene supramolekulare Systeme:
Synthese, Entwicklung und Untersuchung


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Die Fachbibliothek Chemie ist eine gemeinsame Bibliothek der Fachgruppe Chemie, die sich im Gebäude des Kekulé-Institut für Organische Chemie und Biochemie (EG) befindet. Sie besteht aus einer Sammlung von Monographien (Büchern), Zeitschriften und Serien und wird als Präsenzbibliothek geführt. Ein öffentliches Kopiergerät steht in der Bibliothek zur Verfügung.


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