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A Long Pathway to the Quantitative Assembly of Metallodendrimers

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Abstract

This overview describes our research progression from the study of heterocycle synthesis to dendritic architecture to simple metallomacrocycles, and finally to complex, fractal-based, suprametallomolecular materials. Construction of the first terpyridine-modified dendritic scaffold was followed by the construction and self-assembly of polyterpyridine monomers. Preparation of tristerpyridine building blocks used in concert with bisterpyridine analogs facilitated access to a Sierpiński gasket, as verified by direct visual observation with UHV-STEM, as well as other techniques. Numerous examples of heteroleptic self-assembly are described that include the quantitative preparation of a Sierpiński triangle. Addition of angled spacer moieties within polyterpyridine building blocks has generated a new family of 3D spherical materials that has facilitated the construction of hybrid fractal-dendritic materials that exhibit the unexpected concentration mediated, architectural transformations.

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Acknowledgements

The authors gratefully acknowledge the funding from the National Science Foundation (CHE-1151991), the James and Vanita Oelschlager funding via the University of Akron, and the numerous undergraduate and graduate students, postdoctoral fellows, and visiting faculty, who were part of this adventure.

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Authors and Affiliations

  1. Department of Polymer Science, University of Akron, Akron, OH, 44325, USA

    George R. Newkome & Sourav Chakraborty

  2. Center for Molecular Biology and Biotechnology, Florida Atlantic Univesity, Jupiter, FL, 33428, USA

    George R. Newkome

  3. Dendronex LLC, 109 Runway Drive, Reese Technology Center, Lubbock, TX, 79416, USA

    Charles N. Moorefield

Authors
  1. George R. Newkome
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  2. Charles N. Moorefield
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  3. Sourav Chakraborty
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Correspondence to George R. Newkome.

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Newkome, G.R., Moorefield, C.N. & Chakraborty, S. A Long Pathway to the Quantitative Assembly of Metallodendrimers. J Inorg Organomet Polym 28, 360–368 (2018). https://doi.org/10.1007/s10904-017-0676-8

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