Schering Stiftung

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Dr. Wei Jiang

Dr. Wei Jiang

Wei Jiang

Schering Preis 2010

Dr. Wei Jiang

Wei Jiang

Schering Preis 2010


Dr. Wei Jiang from the Institute of Chemistry and Biochemistry at Freie Universität Berlin is awarded the Schering Prize 2010 for his research on „Supramolecular Synthesis via Integrative Self-Sorting“.

Dr. Wei Jiang from The Skaggs Institute for Chemical Biology (MB26), The Scripps Research Institute in San Diego, California, receives the 2010 Schering Prize for his work on the topic of „Supramolecular Synthesis via Integrative Self-Sorting”, which he carried out from 2007 to 2011 under the supervision of Professor Dr. Christoph A. Schalley at the Institute of Chemistry and Biochemistry at Freie Universität Berlin. In his dissertaion, Wei Jiang developed new methods of supramolecular selforganisation of assemblies with low symmetry employing mass spectrometry.

Supramolecular Synthesis via Integrative Self-Sorting

Generally speaking, complex function is based on complex structure. In the macroscopic world, devices and machines are assembled from many different components cooperating with each other to perform complex functions. The same holds true for most functional molecular assemblies in Nature. Understanding the organization principle underlying these assemblies could enable chemists to design more complex artificial assemblies functioning as molecular machines and smart materials.

During his PhD research, Wei Jiang proposed the strategy of integrative self-sorting by combining several well-known concepts in supramolecular chemistry – self-assembly, multivalency, templation, and self-sorting. This strategy incorporates simple self-sorting components into one well-defined supramolecular assemblies, thus provides a modular, programmable approach to access high-level structural complexity and diversity. With two sets of supramolecular binding motifs – one in water and one in organic solvent, he has successfully demonstrated the feasibility of this strategy. On the basis of the latter set, various assemblies have been constructed, showing that structural diversity can be readily accessed with this strategy.

Nevertheless, the high-level structural complexity and low symmetry of these integrative self-sorting assemblies impose great challenge on common analytic techniques. Although NMR spectroscopy can still be used for the characterization of the assemblies up to a certain level of complexity, tandem mass spectrometry turns out to be particularly useful to analyze the assemblies’ connectivities. In addition, through coupling a mixed-flow microreactor to electrospray ionization mass spectrometry, the formation kinetics of these assembles have also been studied. Detailed understanding of their formation kinetics enables the design of a streamlined formation pathway with which the thermodynamic products can be reached with high assembly efficiency.

In summary, the research described in this thesis provides a general strategy – integrative self-sorting – to non-covalently synthesize complex supramolecular assemblies, and thus lays the structural basis for achieving complex supramolecular functions.

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Begleitveranstaltungen 

Preisverleihung

14.10.2011, 16–18 Uhr
Schering Preis 2010 und Bohlmann Vorlesung 2011

Technische Universität Berlin
Hörsaal C 130 (altes Chemiegebäude)
Straße des 17. Juni 115 | 10623 Berlin

Bohlmann-Vorlesung 2011 

Vortrag — 14.10.2011

Am 14. Oktober 2011 um 16:15 Uhr spricht Prof. Ei-ichi Negishi von der Purdue University, West Lafayette anlässlich der Bohlmann-Vorlesung zum Thema "Magical Power of d-Block Transition Metals".

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