The research was supported by the Deutsche Forschungsgemeinschaft (DFG) in the frame of the Sonderforschungsbereich (SFB) 625. C.G.C. is greatful for financial support from a US National Science Foundation MPS Distinguished International Postdoctoral Research Fellowship (MPS-DRF; Award: DMR-0207086). We would like to thank M. Wagner for NMR results and A. Rouhanipour and H.-J. Räder for mass spectrometric results and helpful discussions.
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Communication
Pushing the Synthetic Limit: Polyphenylene Dendrimers with “Exploded” Branching Units—22-nm-Diameter, Monodisperse, Stiff Macromolecules†
Article first published online: 7 SEP 2005
DOI: 10.1002/anie.200501368
Copyright © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Andreitchenko, E. V., Clark, C. G., Bauer, R. E., Lieser, G. and Müllen, K. (2005), Pushing the Synthetic Limit: Polyphenylene Dendrimers with “Exploded” Branching Units—22-nm-Diameter, Monodisperse, Stiff Macromolecules. Angew. Chem. Int. Ed., 44: 6348–6354. doi: 10.1002/anie.200501368
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Publication History
- Issue published online: 30 SEP 2005
- Article first published online: 7 SEP 2005
- Manuscript Received: 20 APR 2005
Keywords:
- cycloaddition;
- dendrimers;
- mass spectrometry;
- nanostructures;
- structure elucidation
Structural perfection up to the fifth generation of a polyphenylene dendrimer has been achieved by inserting p-terphenyl spacers into the arms of each branching unit (see picture). The stiff, monodisperse macromolecules with diameters up to 22 nm were synthesized in a stepwise manner, during which the topology of the branching units was controlled. Dendrimers containing up to 1368 phenyl rings with high porosity were generated.