Controlled MegaDalton Assembly with Locally Stiff but Globally Flexible Polyphenylene Dendrimers

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Author(s) Clark, Christopher G., Wenzel, Ryan J., Andreitchenko, Ekaterina V., Steffen, Werner, Zenobi, Renato, Müllen, Klaus
Publication Type Journal Items, Publication Status: Published
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Title Controlled MegaDalton Assembly with Locally Stiff but Globally Flexible Polyphenylene Dendrimers
Author(s) Clark, Christopher G.
Wenzel, Ryan J.
Andreitchenko, Ekaterina V.
Steffen, Werner
Zenobi, Renato
Müllen, Klaus
Journal or Series Title Journal of the American Chemical Society
Volume Number 129
Issue Number 11
Start Page 3292
End Page 3301
ISSN 0002-7863
1520-5126
Publisher American Chemical Society
Publication Place Washington, DC
Publication Date 2007
Abstract The divergent polyphenylene dendrimer synthesis of the largest chemically monodisperse molecules to date, up to 28 nm at 271.6 kDa for the sixth generation, is presented. Monodispersity, conformational flexibility, and an assembly behavior reminiscent of multimeric proteins for the locally stiff, macroporous dendrimers were evaluated with a combination of molecular and polymer characterization tools, namely size exclusion chromatography, atomic force microscopy, ultrahigh-mass MALDI-TOF mass spectrometry, and dynamic light scattering. Remarkably, the high-precision MegaDalton assembly of shape-adaptable dendrimers occurs in the absence of electrostatic or hydrogen-bonding interactions and is the product of Lilliputian solvophobic interactions, mediated by the dendrimer arm size, shape, and stiffness. This covalent/noncovalent approach offers a general molecular shaping motif that is completely different than what has been previously accessible with conventional self-assembly.
DOI 10.1021/ja067662u
Additional Notes Received 26 October 2006, Published online 23 February 2007
Document Type Article
Publication Status Published
Language English
Assigned Organisational Unit(s) 03430
Organisational Unit(s)
NEBIS System Number 000019691
Source Database ID PP-34131
WOS-000244896900056
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@article{Clrk2007,
  author = "Clark, Christopher G. and Wenzel, Ryan J. and Andreitchenko, Ekaterina V. and Steffen, Werner and Zenobi, Renato and M{\"{u}}llen, Klaus",
  title = "{C}ontrolled {M}ega{D}alton {A}ssembly with {L}ocally {S}tiff but {G}lobally {F}lexible {P}olyphenylene {D}endrimers",
  journal = "Journal of the American Chemical Society",
  year = 2007,
  volume = "129",
  number = "11",
  pages = "3292--3301",
}


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